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Solution
Q.22 Correct
Q.22 In-correct
Q.22 Unattempt
In the following given reaction ' A ' is

[24-Jan-2023 Shift 1]
In the following given reaction ' A ' is

[24-Jan-2023 Shift 1]
Q.23 Correct
Q.23 In-correct
Q.23 Unattempt
Given below are two statements :
Statement I :

under Clemmensen reduction conditions will give HOOC
Statement II :

under Wolff-Kishner reduction condition will give

In the light of the above statements, choose the correct answer from the options given below :
[24-Jan-2023 Shift 2]
Given below are two statements :
Statement I :

under Clemmensen reduction conditions will give HOOC
Statement II :

under Wolff-Kishner reduction condition will give

In the light of the above statements, choose the correct answer from the options given below :
[24-Jan-2023 Shift 2]
Q.24 Correct
Q.24 In-correct
Q.24 Unattempt
Find out the major products from the following reactions.

[24-Jan-2023 Shift 2]
Find out the major products from the following reactions.

[24-Jan-2023 Shift 2]
Q.25 Correct
Q.25 In-correct
Q.25 Unattempt
The compound which will have the lowest rate towards nucleophilic aromatic substitution on treatment with OHis
[25-Jan-2023 Shift 1]
The compound which will have the lowest rate towards nucleophilic aromatic substitution on treatment with OHis
[25-Jan-2023 Shift 1]
Q.26 Correct
Q.26 In-correct
Q.26 Unattempt
The major product ' P ' for the following sequence| of reactions is:

[29-Jan-2023 Shift 1]
The major product ' P ' for the following sequence| of reactions is:

[29-Jan-2023 Shift 1]
Q.27 Correct
Q.27 In-correct
Q.27 Unattempt
17mg of a hydrocarbon (M.F. C10H16 ) takes up 8.40mL of the H2 gas measured at 0C and 760 mm of Hg. Ozonolysis of the same hydrocarbon yields
CH3
C
||
O
CH3
,H
C
||
O
H
,H
C
||
O
CH2
CH2
C
||
O
C
||
O
H

The number of double bond/s present in the hydrocarbon is ________.
[29-Jan-2023 Shift 1]
17mg of a hydrocarbon (M.F. C10H16 ) takes up 8.40mL of the H2 gas measured at 0C and 760 mm of Hg. Ozonolysis of the same hydrocarbon yields
CH3
C
||
O
CH3
,H
C
||
O
H
,H
C
||
O
CH2
CH2
C
||
O
C
||
O
H

The number of double bond/s present in the hydrocarbon is ________.
[29-Jan-2023 Shift 1]
Q.28 Correct
Q.28 In-correct
Q.28 Unattempt
The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)
[29-Jan-2023 Shift 2]
The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)
[29-Jan-2023 Shift 2]
Q.29 Correct
Q.29 In-correct
Q.29 Unattempt
Find out the major product for the following reaction.

[29-Jan-2023 Shift 2]
Find out the major product for the following reaction.

[29-Jan-2023 Shift 2]
Q.30 Correct
Q.30 In-correct
Q.30 Unattempt
The major products ' A' and ' B ', respectively, are

[30-Jan-2023 Shift 1]
The major products ' A' and ' B ', respectively, are

[30-Jan-2023 Shift 1]
Q.31 Correct
Q.31 In-correct
Q.31 Unattempt
Choose the correct set of reagents for the following conversion trans (PhCH=CHCH3)cis(PhCH=CHCH3)
[31-Jan-2023 Shift 1]
Choose the correct set of reagents for the following conversion trans (PhCH=CHCH3)cis(PhCH=CHCH3)
[31-Jan-2023 Shift 1]
Q.32 Correct
Q.32 In-correct
Q.32 Unattempt
A hydrocarbon ' X ' with formula C6H8 uses two moles of H2 on catalytic hydrogenation of its one mole. On ozonolysis, ' X ' yields two moles of methane dicarbaldehyde. The hydrocarbon ' X ' is:
[31-Jan-2023 Shift 2]
A hydrocarbon ' X ' with formula C6H8 uses two moles of H2 on catalytic hydrogenation of its one mole. On ozonolysis, ' X ' yields two moles of methane dicarbaldehyde. The hydrocarbon ' X ' is:
[31-Jan-2023 Shift 2]
Q.33 Correct
Q.33 In-correct
Q.33 Unattempt
But-2-yne is reacted separately with one mole of Hydrogen as shown below:
B
Na
liqNH3
NH3
C
CCH3
PdC
Δ
A

Identify the incorrect statements from the options given below:
A. A is more soluble than B.
B. The boiling point & melting point of A are higher and lower than B respectively.
C. A is more polar than B because dipole moment of A is zero.
D. Br2 adds easily to B than A.
[1-Feb-2023 Shift 1]
But-2-yne is reacted separately with one mole of Hydrogen as shown below:
B
Na
liqNH3
NH3
C
CCH3
PdC
Δ
A

Identify the incorrect statements from the options given below:
A. A is more soluble than B.
B. The boiling point & melting point of A are higher and lower than B respectively.
C. A is more polar than B because dipole moment of A is zero.
D. Br2 adds easily to B than A.
[1-Feb-2023 Shift 1]
Q.34 Correct
Q.34 In-correct
Q.34 Unattempt

[1-Feb-2023 Shift 2]

[1-Feb-2023 Shift 2]
Q.35 Correct
Q.35 In-correct
Q.35 Unattempt
Number of bromo derivatives obtained on treating ethane with excess of Br2, in diffused sunlight is...
[6-Apr-2023 shift 1]
Number of bromo derivatives obtained on treating ethane with excess of Br2, in diffused sunlight is...
[6-Apr-2023 shift 1]
Q.36 Correct
Q.36 In-correct
Q.36 Unattempt
Molar mass of the hydrocarbon (X) which on ozonolysis consumes one mole of O3 per mole of (X) and gives one mole each of ethanol and propanone is _______ gmol1 (Molar mass of C:12gmol1,H:1gmol1)
[8-Apr-2023 shift 1]
Molar mass of the hydrocarbon (X) which on ozonolysis consumes one mole of O3 per mole of (X) and gives one mole each of ethanol and propanone is _______ gmol1 (Molar mass of C:12gmol1,H:1gmol1)
[8-Apr-2023 shift 1]
Q.37 Correct
Q.37 In-correct
Q.37 Unattempt
The major product ' P ' formed in the given reaction is

[10-Apr-2023 shift 1]
The major product ' P ' formed in the given reaction is

[10-Apr-2023 shift 1]
Q.38 Correct
Q.38 In-correct
Q.38 Unattempt
Arrange the following compounds in increasing order of rate of aromatic electrophilic substitution reaction

[11-Apr-2023 shift 1]
Arrange the following compounds in increasing order of rate of aromatic electrophilic substitution reaction

[11-Apr-2023 shift 1]
Q.39 Correct
Q.39 In-correct
Q.39 Unattempt
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A

can be subjected to Wolff-Kishner reduction to give

Reason R:Wolff-Kishner reduction is used to convert

In the light of the above statements, choose the correct answer from the options given below:
[11-Apr-2023 shift 2]
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A

can be subjected to Wolff-Kishner reduction to give

Reason R:Wolff-Kishner reduction is used to convert

In the light of the above statements, choose the correct answer from the options given below:
[11-Apr-2023 shift 2]
Q.40 Correct
Q.40 In-correct
Q.40 Unattempt
The major product formed in the following reaction is
C6H5CH(OH)
CH
|
CH3
CH2CHO
Zn(Hg)HCl
Δ
Major products

Choose the correct answer from the options given below:
[11-Apr-2023 shift 2]
The major product formed in the following reaction is
C6H5CH(OH)
CH
|
CH3
CH2CHO
Zn(Hg)HCl
Δ
Major products


Choose the correct answer from the options given below:
[11-Apr-2023 shift 2]
Q.41 Correct
Q.41 In-correct
Q.41 Unattempt
2-hexene
(i)O3
(ii) H2O
Products
The two products formed in above reaction are -
[12-Apr-2023 shift 1]
2-hexene
(i)O3
(ii) H2O
Products
The two products formed in above reaction are -
[12-Apr-2023 shift 1]
Q.42 Correct
Q.42 In-correct
Q.42 Unattempt
In the following reaction ' X ' is
CH3(CH2)4CH3
Anhy. AlCl3
HCl
Δ
X
majorproduct
'
[13-Apr-2023 shift 1]
In the following reaction ' X ' is
CH3(CH2)4CH3
Anhy. AlCl3
HCl
Δ
X
majorproduct
'
[13-Apr-2023 shift 1]
Q.43 Correct
Q.43 In-correct
Q.43 Unattempt
The product formed in the following multistep reaction is:
CH3CH=CH2=
i)B2H6
ii)H2O2,NaOH
iii)PCC
iv)CH3MgBr
[15-Apr-2023 shift 1]
The product formed in the following multistep reaction is:
CH3CH=CH2=
i)B2H6
ii)H2O2,NaOH
iii)PCC
iv)CH3MgBr
[15-Apr-2023 shift 1]
Q.44 Correct
Q.44 In-correct
Q.44 Unattempt
The major product A of the following given reaction has_____ sp2 hybridized carbon atoms.
2,7-Dimethyl-2, 6-octadiene
H
+
A
Majorproduct
[24-Jun-2022-Shift-1]
The major product A of the following given reaction has_____ sp2 hybridized carbon atoms.
2,7-Dimethyl-2, 6-octadiene
H
+
A
Majorproduct
[24-Jun-2022-Shift-1]
Q.45 Correct
Q.45 In-correct
Q.45 Unattempt
Given below are two statements:
Statement I : The presence of weaker π-bonds make alkenes less stable than alkanes.
Statement II : The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below:
[24-Jun-2022-Shift-2]
Given below are two statements:
Statement I : The presence of weaker π-bonds make alkenes less stable than alkanes.
Statement II : The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below:
[24-Jun-2022-Shift-2]
Q.46 Correct
Q.46 In-correct
Q.46 Unattempt
Which of the following reagents / reactions will convert 'A' to ' B ' ?

[24-Jun-2022-Shift-2]
Which of the following reagents / reactions will convert 'A' to ' B ' ?

[24-Jun-2022-Shift-2]
Q.47 Correct
Q.47 In-correct
Q.47 Unattempt

[25-Jun-2022-Shift-1]

[25-Jun-2022-Shift-1]
Q.48 Correct
Q.48 In-correct
Q.48 Unattempt
The major product in the following reaction

[26-Jun-2022-Shift-2]
The major product in the following reaction

[26-Jun-2022-Shift-2]
Q.49 Correct
Q.49 In-correct
Q.49 Unattempt
Halogenation of which one of the following will yield m-substituted product with respect to methyl group as a major product?
[26-Jun-2022-Shift-2]
Halogenation of which one of the following will yield m-substituted product with respect to methyl group as a major product?
[26-Jun-2022-Shift-2]
Q.50 Correct
Q.50 In-correct
Q.50 Unattempt
'A' and 'B' respectively are:
A
(1)O3
(2)ZnH2O
Ethane-1,2-dicarbaldehyde + Glyoxal/Oxaldehyde

B
(1)O3
(2)ZnH2O
5-oxohexanal
[27-Jun-2022-Shift-1]
'A' and 'B' respectively are:
A
(1)O3
(2)ZnH2O
Ethane-1,2-dicarbaldehyde + Glyoxal/Oxaldehyde

B
(1)O3
(2)ZnH2O
5-oxohexanal
[27-Jun-2022-Shift-1]
Q.51 Correct
Q.51 In-correct
Q.51 Unattempt
What will be the major product of following sequence of reactions?
nBu
(i)nBuLi,nC5H11Cl
(ii)Lindlar cat,H2
[27-Jun-2022-Shift-2]
What will be the major product of following sequence of reactions?
nBu
(i)nBuLi,nC5H11Cl
(ii)Lindlar cat,H2
[27-Jun-2022-Shift-2]
Q.52 Correct
Q.52 In-correct
Q.52 Unattempt
Product 'A' of following sequence of reactions is
Ethylbenzene
(a)Br2,Fe
(b)Cl2,
(c)alc.KOH
'A'
Major Product
[27-Jun-2022-Shift-2]
Product 'A' of following sequence of reactions is
Ethylbenzene
(a)Br2,Fe
(b)Cl2,
(c)alc.KOH
'A'
Major Product
[27-Jun-2022-Shift-2]
Q.53 Correct
Q.53 In-correct
Q.53 Unattempt
Two isomers ' A ' and ' B ' with molecular formula C4H8 give different products on oxidation with KMnO4 in acidic medium. Isomer ' A on reaction with KMnO4H+results in effervescence of a gas and gives ketone. The compound ' A is
[29-Jun-2022-Shift-1]
Two isomers ' A ' and ' B ' with molecular formula C4H8 give different products on oxidation with KMnO4 in acidic medium. Isomer ' A on reaction with KMnO4H+results in effervescence of a gas and gives ketone. The compound ' A is
[29-Jun-2022-Shift-1]
Q.54 Correct
Q.54 In-correct
Q.54 Unattempt
In Friedel-Crafts alkylation of aniline, one gets
[29-Jun-2022-Shift-2]
In Friedel-Crafts alkylation of aniline, one gets
[29-Jun-2022-Shift-2]
Q.55 Correct
Q.55 In-correct
Q.55 Unattempt
A compound A on reaction with X and Y produces the same major product but different by product ' a ' and ' b '. Oxidation of ' a ' gives a substance produced by ants.

 ' X ' and 'Y' respectively are
[25-Jul-2022-Shift-1]
A compound A on reaction with X and Y produces the same major product but different by product ' a ' and ' b '. Oxidation of ' a ' gives a substance produced by ants.

 ' X ' and 'Y' respectively are
[25-Jul-2022-Shift-1]
Q.56 Correct
Q.56 In-correct
Q.56 Unattempt
The major product of the following reaction is

[26-Jul-2022-Shift-1]
The major product of the following reaction is

[26-Jul-2022-Shift-1]
Q.57 Correct
Q.57 In-correct
Q.57 Unattempt
In the presence of sunlight, benzene reacts with Cl2 to give product, X. The number of hydrogens in X is _________.
[26-Jul-2022-Shift-1]
In the presence of sunlight, benzene reacts with Cl2 to give product, X. The number of hydrogens in X is _________.
[26-Jul-2022-Shift-1]
Q.58 Correct
Q.58 In-correct
Q.58 Unattempt
Which of the following is not an example of benzenoid compound?
[26-Jul-2022-Shift-2]
Which of the following is not an example of benzenoid compound?
[26-Jul-2022-Shift-2]
Q.59 Correct
Q.59 In-correct
Q.59 Unattempt
Total number of isomers (including stereoisomers) obtained on monochlorination of methylcyclohexane is _________.
[26-Jul-2022-Shift-2]
Total number of isomers (including stereoisomers) obtained on monochlorination of methylcyclohexane is _________.
[26-Jul-2022-Shift-2]
Q.60 Correct
Q.60 In-correct
Q.60 Unattempt
In the following reaction
The % yield for reaction I is 60% and that of reaction II is 50%. The overall yield of the complete reaction is _______%. [nearest integer]
[27-Jul-2022-Shift-1]
In the following reaction

The % yield for reaction I is 60% and that of reaction II is 50%. The overall yield of the complete reaction is _______%. [nearest integer]
[27-Jul-2022-Shift-1]
Q.61 Correct
Q.61 In-correct
Q.61 Unattempt
Major product B' of the following reaction sequence is :

[27-Jul-2022-Shift-2]
Major product B' of the following reaction sequence is :

[27-Jul-2022-Shift-2]
Q.62 Correct
Q.62 In-correct
Q.62 Unattempt
Choose the correct option for the following reactions.

[28-Jul-2022-Shift-1]
Choose the correct option for the following reactions.

[28-Jul-2022-Shift-1]
Q.63 Correct
Q.63 In-correct
Q.63 Unattempt
Arrange the following in increasing order of reactivity towards nitration
A. p-xylene
B. bromobenzene
C. mesitylene
D. nitrobenzene
E. benzene
Choose the correct answer from the options given below
[28-Jul-2022-Shift-2]
Arrange the following in increasing order of reactivity towards nitration
A. p-xylene
B. bromobenzene
C. mesitylene
D. nitrobenzene
E. benzene
Choose the correct answer from the options given below
[28-Jul-2022-Shift-2]
Q.64 Correct
Q.64 In-correct
Q.64 Unattempt
Which among the following pairs of the structures will give different products on ozonolysis? (Consider the double bonds in the structures are rigid and not delocalized.)
[29-Jul-2022-Shift-1]
Which among the following pairs of the structures will give different products on ozonolysis? (Consider the double bonds in the structures are rigid and not delocalized.)
[29-Jul-2022-Shift-1]
Q.65 Correct
Q.65 In-correct
Q.65 Unattempt
In bromination of Propyne, with Bromine, 1, 1, 2, 2-tetrabromopropane is obtained in 27\% yield. The amount of 1, 1, 2, 2-tetrabromopropane obtained from 1g of Bromine in this reaction is _______ x 101g. (Nearest integer)
(Molar Mass : Bromine =80gmol)
[29-Jul-2022-Shift-1]
In bromination of Propyne, with Bromine, 1, 1, 2, 2-tetrabromopropane is obtained in 27\% yield. The amount of 1, 1, 2, 2-tetrabromopropane obtained from 1g of Bromine in this reaction is _______ x 101g. (Nearest integer)
(Molar Mass : Bromine =80gmol)
[29-Jul-2022-Shift-1]
Q.66 Correct
Q.66 In-correct
Q.66 Unattempt
Identify A in the given chemical reaction.

[25 Feb 2021 Shift 1]
Identify A in the given chemical reaction.

[25 Feb 2021 Shift 1]
Q.67 Correct
Q.67 In-correct
Q.67 Unattempt
For the given reaction
H
C
|
CH3
=CHBr
(i)NaNH2
(ii)Redhotirontubeiron,873K
(A)
Majorproduct
[26 Feb 2021 Shift 1]
For the given reaction
H
C
|
CH3
=CHBr
(i)NaNH2
(ii)Redhotirontubeiron,873K
(A)
Majorproduct
[26 Feb 2021 Shift 1]
Q.68 Correct
Q.68 In-correct
Q.68 Unattempt
The correct sequence of reagents used in the preparation of 4-bromo-2-nitroethyl benzene from benzene is
[25 Feb 2021 Shift 2]
The correct sequence of reagents used in the preparation of 4-bromo-2-nitroethyl benzene from benzene is
[25 Feb 2021 Shift 2]
Q.69 Correct
Q.69 In-correct
Q.69 Unattempt
The major product of the following reaction is

[25 Feb 2021 Shift 2]
The major product of the following reaction is

[25 Feb 2021 Shift 2]
Q.70 Correct
Q.70 In-correct
Q.70 Unattempt
Consider the following chemical reaction.
CHCH
(1) Red hot Fe tube, 873K
(2)CO,HCl,AlCl3
Product The number of sp2 hybridised carbon atom(s) present in the product is .............
[25 Feb 2021 Shift 1]
Consider the following chemical reaction.
CHCH
(1) Red hot Fe tube, 873K
(2)CO,HCl,AlCl3
Product The number of sp2 hybridised carbon atom(s) present in the product is .............
[25 Feb 2021 Shift 1]
Q.71 Correct
Q.71 In-correct
Q.71 Unattempt
Which one of the following compounds is non-aromatic ?
[24 Feb 2021 Shift 2]
Which one of the following compounds is non-aromatic ?
[24 Feb 2021 Shift 2]
Q.72 Correct
Q.72 In-correct
Q.72 Unattempt
What is the major product formed by HI on reaction with

[24feb2021shift1]
What is the major product formed by HI on reaction with

[24feb2021shift1]
Q.73 Correct
Q.73 In-correct
Q.73 Unattempt
Which of the following reagent is used for the following reaction?
CH3CH2CH3
?
CH3
CH2
CHO
[24feb2021shift1]
Which of the following reagent is used for the following reaction?
CH3CH2CH3
?
CH3
CH2
CHO
[24feb2021shift1]
Q.74 Correct
Q.74 In-correct
Q.74 Unattempt
Given below are two statements.
Statement-I 2-methylbutane on oxidation with KMnO4 gives 2 -methylbutan-2-ol.
Statement-II n-alkanes can be easily oxidised to corresponding alcohols with KMnO4.
Choose the correct option.
[17 Mar 2021 Shift 2]
Given below are two statements.
Statement-I 2-methylbutane on oxidation with KMnO4 gives 2 -methylbutan-2-ol.
Statement-II n-alkanes can be easily oxidised to corresponding alcohols with KMnO4.
Choose the correct option.
[17 Mar 2021 Shift 2]
Q.75 Correct
Q.75 In-correct
Q.75 Unattempt
Which of the following is an aromatic compound?
[17 Mar 2021 Shift 1]
Which of the following is an aromatic compound?
[17 Mar 2021 Shift 1]
Q.76 Correct
Q.76 In-correct
Q.76 Unattempt
Among the following, the aromatic compounds are

Choose the correct answer from the following options.
[16 Mar 2021 Shift 1]
Among the following, the aromatic compounds are

Choose the correct answer from the following options.
[16 Mar 2021 Shift 1]
Q.77 Correct
Q.77 In-correct
Q.77 Unattempt
Consider the above chemical reaction. The total number of stereoisomers possible for Product 'P' is __________ .
[25 Jul 2021 Shift 2]

Consider the above chemical reaction. The total number of stereoisomers possible for Product 'P' is __________ .
[25 Jul 2021 Shift 2]
Q.78 Correct
Q.78 In-correct
Q.78 Unattempt
Major product P of above reaction, is :
[20 Jul 2021 Shift 2]

Major product P of above reaction, is :
[20 Jul 2021 Shift 2]
Q.79 Correct
Q.79 In-correct
Q.79 Unattempt
The correct decreasing order of densities of the following compounds is :

[25 Jul 2021 Shift 2]
The correct decreasing order of densities of the following compounds is :

[25 Jul 2021 Shift 2]
Q.80 Correct
Q.80 In-correct
Q.80 Unattempt
Benzene on nitration gives nitrobenzene in presence of HNO3 and H2SO4 mixture, where :
[20 Jul 2021 Shift 2]
Benzene on nitration gives nitrobenzene in presence of HNO3 and H2SO4 mixture, where :
[20 Jul 2021 Shift 2]
Q.81 Correct
Q.81 In-correct
Q.81 Unattempt
For the following

[31 Aug 2021 Shift 2]
For the following

[31 Aug 2021 Shift 2]
Q.82 Correct
Q.82 In-correct
Q.82 Unattempt
Which one of the following compounds is not aromatic?
[26 Aug 2021 Shift 2]
Which one of the following compounds is not aromatic?
[26 Aug 2021 Shift 2]
Q.83 Correct
Q.83 In-correct
Q.83 Unattempt
For the following

[31 Aug 2021 Shift 2]
For the following

[31 Aug 2021 Shift 2]
Q.84 Correct
Q.84 In-correct
Q.84 Unattempt
Which one of the following compounds is not aromatic?
[26 Aug 2021 Shift 2]
Which one of the following compounds is not aromatic?
[26 Aug 2021 Shift 2]
Q.85 Correct
Q.85 In-correct
Q.85 Unattempt
Which one of the following compounds is aromatic in nature ?
[1 Sep 2021 Shift 2]
Which one of the following compounds is aromatic in nature ?
[1 Sep 2021 Shift 2]
Q.86 Correct
Q.86 In-correct
Q.86 Unattempt
Which one of the following compounds is aromatic in nature ?
[1 Sep 2021 Shift 2]
Which one of the following compounds is aromatic in nature ?
[1 Sep 2021 Shift 2]
Q.87 Correct
Q.87 In-correct
Q.87 Unattempt
Experimentally reducing a functional group cannot be done by which one of the following reagents ?
[1 Sep 2021 Shift 2]
Experimentally reducing a functional group cannot be done by which one of the following reagents ?
[1 Sep 2021 Shift 2]
Q.88 Correct
Q.88 In-correct
Q.88 Unattempt
The correct order of heat of combustion for following alkadienes is:

[Jan. 09, 2020(I)]
The correct order of heat of combustion for following alkadienes is:

[Jan. 09, 2020(I)]
Q.89 Correct
Q.89 In-correct
Q.89 Unattempt
Which of the following has the shortest C-Cl bond?
[Jan. 09,2020 (II)]
Which of the following has the shortest C-Cl bond?
[Jan. 09,2020 (II)]
Q.90 Correct
Q.90 In-correct
Q.90 Unattempt
Which of the following reactions will not produce a racemic product?
[Jan. 09, 2020 (II)]
Which of the following reactions will not produce a racemic product?
[Jan. 09, 2020 (II)]
Q.91 Correct
Q.91 In-correct
Q.91 Unattempt
The major products A and B in the following reactions are:

[Jan. 08,2020 (I)]
The major products A and B in the following reactions are:

[Jan. 08,2020 (I)]
Q.92 Correct
Q.92 In-correct
Q.92 Unattempt
The major product [B] in the following sequence of reactions is:
CH3
C
|
CH(CH3)2
=CHCH2CH3
(i)B2H6
(ii)H2O2,OH
[A]
dil.H2SO4
[B]
[Jan. 08,2020 (II)]
The major product [B] in the following sequence of reactions is:
CH3
C
|
CH(CH3)2
=CHCH2CH3
(i)B2H6
(ii)H2O2,OH
[A]
dil.H2SO4
[B]
[Jan. 08,2020 (II)]
Q.93 Correct
Q.93 In-correct
Q.93 Unattempt
The major product (Y) in the following reactions is:
CH3CHCCH
HgSO4,H2SO4
H2O

(i)C2H5MgBr,H2O
(ii)Conc.H2SO4
[Jan. 09, 2020 (I)]
The major product (Y) in the following reactions is:
CH3CHCCH
HgSO4,H2SO4
H2O

(i)C2H5MgBr,H2O
(ii)Conc.H2SO4
[Jan. 09, 2020 (I)]
Q.94 Correct
Q.94 In-correct
Q.94 Unattempt
In the following sequence of reactions the maximum number of atoms present in molecule ' C in one plane is _________. A
Redhot
Cu tube
B
CH3Cl( L.eq. )
Anhydrous ACl3

(A is a lowest molecular weight alkyne)
[NV. Jan. 08,2020 (II)]
In the following sequence of reactions the maximum number of atoms present in molecule ' C in one plane is _________. A
Redhot
Cu tube
B
CH3Cl( L.eq. )
Anhydrous ACl3

(A is a lowest molecular weight alkyne)
[NV. Jan. 08,2020 (II)]
Q.95 Correct
Q.95 In-correct
Q.95 Unattempt
The number of sp2 hybrid orbitals in a molecule of benzene is:
[Jan. 09,2020 (II)]
The number of sp2 hybrid orbitals in a molecule of benzene is:
[Jan. 09,2020 (II)]
Q.96 Correct
Q.96 In-correct
Q.96 Unattempt
Consider the following reactions:

Which of these reactions are possible?
[Jan. 07, 2020(II)]
Consider the following reactions:

Which of these reactions are possible?
[Jan. 07, 2020(II)]
Q.97 Correct
Q.97 In-correct
Q.97 Unattempt
The major product of the following reaction is :

[Sep. 06, 2020(I)]
The major product of the following reaction is :

[Sep. 06, 2020(I)]
Q.98 Correct
Q.98 In-correct
Q.98 Unattempt
Which of the following compounds shows geometrical isomerism?
[Sep. 06,2020(I)]
Which of the following compounds shows geometrical isomerism?
[Sep. 06,2020(I)]
Q.99 Correct
Q.99 In-correct
Q.99 Unattempt
The increasing order of the boiling point of the major products A,B and C of the following reactions will be:

[Sep .06,2020(II)]
The increasing order of the boiling point of the major products A,B and C of the following reactions will be:

[Sep .06,2020(II)]
Q.100 Correct
Q.100 In-correct
Q.100 Unattempt
The major product formed in the following reaction is:
CH3CH=CHCH(CH3)2
HBr
[Sep. 05, 2020(II)]
The major product formed in the following reaction is:
CH3CH=CHCH(CH3)2
HBr
[Sep. 05, 2020(II)]
Q.101 Correct
Q.101 In-correct
Q.101 Unattempt
Among the following compounds, geometrical isomerism is exhibited by:
[Sep. 05, 2020 (II)]
Among the following compounds, geometrical isomerism is exhibited by:
[Sep. 05, 2020 (II)]
Q.102 Correct
Q.102 In-correct
Q.102 Unattempt
Which of the following compounds produces an optically inactive compound on hydrogenation?
[Sep. 03,2020 (I)]
Which of the following compounds produces an optically inactive compound on hydrogenation?
[Sep. 03,2020 (I)]
Q.103 Correct
Q.103 In-correct
Q.103 Unattempt
The major product in the following reaction is:

[Sep. 02,2020(I)]
The major product in the following reaction is:

[Sep. 02,2020(I)]
Q.104 Correct
Q.104 In-correct
Q.104 Unattempt
The major product obtained from the following reaction is:

[Sep. 06,2020 (I)]
The major product obtained from the following reaction is:

[Sep. 06,2020 (I)]
Q.105 Correct
Q.105 In-correct
Q.105 Unattempt
The major product of the following reaction is :

[Jan. 12, 2019 (II)]
The major product of the following reaction is :

[Jan. 12, 2019 (II)]
Q.106 Correct
Q.106 In-correct
Q.106 Unattempt
The correct order for acid strength of compounds CH CH,CH3CCH and CH2=CH2 is as follows:
[Jan. 12, 2019 (I)]
The correct order for acid strength of compounds CH CH,CH3CCH and CH2=CH2 is as follows:
[Jan. 12, 2019 (I)]
Q.107 Correct
Q.107 In-correct
Q.107 Unattempt
Which compound (s) out of the following is\/are not aromatic?

[Jan. 11, 2019 (I)]
Which compound (s) out of the following is\/are not aromatic?

[Jan. 11, 2019 (I)]
Q.108 Correct
Q.108 In-correct
Q.108 Unattempt
Which of the following compounds is not aromatic?
[Jan. 9, 2019 (II)]
Which of the following compounds is not aromatic?
[Jan. 9, 2019 (II)]
Q.109 Correct
Q.109 In-correct
Q.109 Unattempt
In the following skew conformation of ethane, HCCH3 dihedral angle is :

[April 12, 2019 (II)]
In the following skew conformation of ethane, HCCH3 dihedral angle is :

[April 12, 2019 (II)]
Q.110 Correct
Q.110 In-correct
Q.110 Unattempt
25g of an unknown hydrocarbon upon burning produces 88g of CO2 and 9g of H2O. This unknown hydrocarbon contains:
[April 12, 2019 (II)]
25g of an unknown hydrocarbon upon burning produces 88g of CO2 and 9g of H2O. This unknown hydrocarbon contains:
[April 12, 2019 (II)]
Q.111 Correct
Q.111 In-correct
Q.111 Unattempt
At 300K and 1 atmospheric pressure, 10mL of a hydrocarbon required 55mL of O2 for complete combustion, and 40mL of CO2 is formed. The formula of the hydrocarbon is:
[April 10,2019, (I)]
At 300K and 1 atmospheric pressure, 10mL of a hydrocarbon required 55mL of O2 for complete combustion, and 40mL of CO2 is formed. The formula of the hydrocarbon is:
[April 10,2019, (I)]
Q.112 Correct
Q.112 In-correct
Q.112 Unattempt
Which of these factors does not govern the stability of a conformation in acyclic compounds?
[April 10,2019, (II)]
Which of these factors does not govern the stability of a conformation in acyclic compounds?
[April 10,2019, (II)]
Q.113 Correct
Q.113 In-correct
Q.113 Unattempt
The major product of the following addition reaction is
H3CCH=CH2
Cl2H2O
[April 12, 2019(I)]
The major product of the following addition reaction is
H3CCH=CH2
Cl2H2O
[April 12, 2019(I)]
Q.114 Correct
Q.114 In-correct
Q.114 Unattempt
But 2 -ene on reaction with alkaline KMnO4 at elevated temperature followed by acidification will give :
[April 12, 2019 (I)]
But 2 -ene on reaction with alkaline KMnO4 at elevated temperature followed by acidification will give :
[April 12, 2019 (I)]
Q.115 Correct
Q.115 In-correct
Q.115 Unattempt
Which one of the following alkenes when treated with HCl yields majorly an anti Markovnikov product?
[April 8, 2019 (II)]
Which one of the following alkenes when treated with HCl yields majorly an anti Markovnikov product?
[April 8, 2019 (II)]
Q.116 Correct
Q.116 In-correct
Q.116 Unattempt
Consider the following reaction:

'A' is:
[April 12, 2019 (II)]
Consider the following reaction:

'A' is:
[April 12, 2019 (II)]
Q.117 Correct
Q.117 In-correct
Q.117 Unattempt
The increasing order of the reactivity of the following compounds towards electrophilic aromatic substitution reactions is :

[April 10,2019 (I)]
The increasing order of the reactivity of the following compounds towards electrophilic aromatic substitution reactions is :

[April 10,2019 (I)]
Q.118 Correct
Q.118 In-correct
Q.118 Unattempt
The increasing order of reactivity of the following compounds towards aromatic electrophilic substitution reaction is:

[April 9,2019 (I)]
The increasing order of reactivity of the following compounds towards aromatic electrophilic substitution reaction is:

[April 9,2019 (I)]
Q.119 Correct
Q.119 In-correct
Q.119 Unattempt
The major product of the following reaction is:
CH3CCH
(i) DCl (1 equiv.)
(ii) D1
[April 9, 2019 (I)]
The major product of the following reaction is:
CH3CCH
(i) DCl (1 equiv.)
(ii) D1
[April 9, 2019 (I)]
Q.120 Correct
Q.120 In-correct
Q.120 Unattempt
The trans-alkenes are formed by the reduction of alkynes with:
[2018]
The trans-alkenes are formed by the reduction of alkynes with:
[2018]
Q.121 Correct
Q.121 In-correct
Q.121 Unattempt
The major product of the following reaction is:

[Online April 16, 2018]
The major product of the following reaction is:

[Online April 16, 2018]
Q.122 Correct
Q.122 In-correct
Q.122 Unattempt
When 2 -butyne is treated with H2 \/Lindlar's catalyst, compound X is produced as the major product and when treated with Na\/liq. NH3 it produces Y as the major product. Which of the following statements is correct?
[Online April 15, 2018 (II)]
When 2 -butyne is treated with H2 \/Lindlar's catalyst, compound X is produced as the major product and when treated with Na\/liq. NH3 it produces Y as the major product. Which of the following statements is correct?
[Online April 15, 2018 (II)]
Q.123 Correct
Q.123 In-correct
Q.123 Unattempt
3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide formsan addition product. The number of possible stereoisomers for the product is :
[2017]
3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide formsan addition product. The number of possible stereoisomers for the product is :
[2017]
Q.124 Correct
Q.124 In-correct
Q.124 Unattempt
Which of the following compounds is most reactive to an aqueous solution of sodium carbonate?
[Online April 9, 2017]
Which of the following compounds is most reactive to an aqueous solution of sodium carbonate?
[Online April 9, 2017]
Q.125 Correct
Q.125 In-correct
Q.125 Unattempt
The major product of the following reaction is :

[Online April 9, 2017]
The major product of the following reaction is :

[Online April 9, 2017]
Q.126 Correct
Q.126 In-correct
Q.126 Unattempt
Which of the following compounds will not undergo Friedel Craft's reaction with benzene?
[Online April 8, 2017]
Which of the following compounds will not undergo Friedel Craft's reaction with benzene?
[Online April 8, 2017]
Q.127 Correct
Q.127 In-correct
Q.127 Unattempt
Which of the following compounds will show highest dipole moment ?

[Online April 9,2017]
Which of the following compounds will show highest dipole moment ?

[Online April 9,2017]
Q.128 Correct
Q.128 In-correct
Q.128 Unattempt
The product of the reaction given below is:

[2016]
The product of the reaction given below is:

[2016]
Q.129 Correct
Q.129 In-correct
Q.129 Unattempt
The reaction of propene with HOCl(Cl2+H2O) proceeds through the intermediate:
[2016]
The reaction of propene with HOCl(Cl2+H2O) proceeds through the intermediate:
[2016]
Q.130 Correct
Q.130 In-correct
Q.130 Unattempt
Bromination of cyclohexene under conditions given below yields:

[Online April 10,2016]
Bromination of cyclohexene under conditions given below yields:

[Online April 10,2016]
Q.131 Correct
Q.131 In-correct
Q.131 Unattempt
What is the major product expected from the following reaction ?

Where D is an isotope of hydrogen
[Online April 11,2015]
What is the major product expected from the following reaction ?

Where D is an isotope of hydrogen
[Online April 11,2015]
Q.132 Correct
Q.132 In-correct
Q.132 Unattempt
In the following sequence of reactions:
Toluene
KMnO4
A
SOCl2
B
H2Pd
BaSO4
C

the product C is :
[2015]
In the following sequence of reactions:
Toluene
KMnO4
A
SOCl2
B
H2Pd
BaSO4
C

the product C is :
[2015]
Q.133 Correct
Q.133 In-correct
Q.133 Unattempt
In the hydroboration - oxidation reaction of propene with diborane, H2O2 and NaOH, the organic compound formed is:
[Online April 9, 2014]
In the hydroboration - oxidation reaction of propene with diborane, H2O2 and NaOH, the organic compound formed is:
[Online April 9, 2014]
Q.134 Correct
Q.134 In-correct
Q.134 Unattempt
The gas liberated by the electrolysis of dipotassium succinate solution is:
[Online April 11, 2014]
The gas liberated by the electrolysis of dipotassium succinate solution is:
[Online April 11, 2014]
Q.135 Correct
Q.135 In-correct
Q.135 Unattempt
In the presence of peroxide, HCl and HI do not give anti-Markownikoff's addition of alkenes because:
[Online April 12, 2014]
In the presence of peroxide, HCl and HI do not give anti-Markownikoff's addition of alkenes because:
[Online April 12, 2014]
Q.136 Correct
Q.136 In-correct
Q.136 Unattempt
The reagent needed for the given conversion is

[Online April 11, 2014]
The reagent needed for the given conversion is

[Online April 11, 2014]
Q.137 Correct
Q.137 In-correct
Q.137 Unattempt
On mercuration-demercuration produces the major product :

[Online April 12, 2014]
On mercuration-demercuration produces the major product :

[Online April 12, 2014]
Q.138 Correct
Q.138 In-correct
Q.138 Unattempt
Which one of the following class of compounds is obtained by polymerization of acetylene?
[Online April 9, 2014]
Which one of the following class of compounds is obtained by polymerization of acetylene?
[Online April 9, 2014]
Q.139 Correct
Q.139 In-correct
Q.139 Unattempt
The addition of HI in the presence of peroxide catalyst does not follow anti-Markovnikov's rule because :
[Online April 9, 2013]
The addition of HI in the presence of peroxide catalyst does not follow anti-Markovnikov's rule because :
[Online April 9, 2013]
Q.140 Correct
Q.140 In-correct
Q.140 Unattempt

X is:
[Online April 9, 2013]

X is:
[Online April 9, 2013]
Q.141 Correct
Q.141 In-correct
Q.141 Unattempt
Which of the following would not give 2 -phenyl butane as the major product in a Fricdel-Crafts alkylation reaction?
[Online April 22, 2013]
Which of the following would not give 2 -phenyl butane as the major product in a Fricdel-Crafts alkylation reaction?
[Online April 22, 2013]
Q.142 Correct
Q.142 In-correct
Q.142 Unattempt
Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of mono substituted alkyl halide?
[2012]
Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of mono substituted alkyl halide?
[2012]
Q.143 Correct
Q.143 In-correct
Q.143 Unattempt
Consider the following sequence of reactions CH3CH=CH2
Cl2
700K
A
Na2CO3
420K,12atm
B
(i) HOCl
(ii) NaOH
C
Compound 'C' is
[Online May 26, 2012]
Consider the following sequence of reactions CH3CH=CH2
Cl2
700K
A
Na2CO3
420K,12atm
B
(i) HOCl
(ii) NaOH
C
Compound 'C' is
[Online May 26, 2012]
Q.144 Correct
Q.144 In-correct
Q.144 Unattempt
2-Hexyne gives trans-2-hexene on treatment with:
[2012]
2-Hexyne gives trans-2-hexene on treatment with:
[2012]
Q.145 Correct
Q.145 In-correct
Q.145 Unattempt
The hydration of propyne results in formation of
[Online May 26,2012]
The hydration of propyne results in formation of
[Online May 26,2012]
Q.146 Correct
Q.146 In-correct
Q.146 Unattempt
Which of the following compounds are antiaromatic

[Online May 26, 2012]
Which of the following compounds are antiaromatic

[Online May 26, 2012]
Q.147 Correct
Q.147 In-correct
Q.147 Unattempt
In the given reaction,

the product ' A ' is
[Online May 12, 2012]
In the given reaction,

the product ' A ' is
[Online May 12, 2012]
Q.148 Correct
Q.148 In-correct
Q.148 Unattempt
The product of the reaction between ethyl benzene and N-bromosuccinamide is
[Online May 19, 2012]
The product of the reaction between ethyl benzene and N-bromosuccinamide is
[Online May 19, 2012]
Q.149 Correct
Q.149 In-correct
Q.149 Unattempt
Ozonolysis of an organic compound 'A' produces acetone and propionaldehyde in equimolar mixture. Identify'A' from the following compounds:
[2011RS]
Ozonolysis of an organic compound 'A' produces acetone and propionaldehyde in equimolar mixture. Identify'A' from the following compounds:
[2011RS]
Q.150 Correct
Q.150 In-correct
Q.150 Unattempt
The non aromatic compound among the following is:
[2011RS]
The non aromatic compound among the following is:
[2011RS]
Q.151 Correct
Q.151 In-correct
Q.151 Unattempt
One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44u. The alkene is
[2010]
One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44u. The alkene is
[2010]
Q.152 Correct
Q.152 In-correct
Q.152 Unattempt
In the following sequence of reactions, the alkene affords the compound ' B ' CH3CH=CHCH3
O3
A
H2O
Zn
B

The compound B is
[2008]
In the following sequence of reactions, the alkene affords the compound ' B ' CH3CH=CHCH3
O3
A
H2O
Zn
B

The compound B is
[2008]
Q.153 Correct
Q.153 In-correct
Q.153 Unattempt
The hydrocarbon which can react with sodium in liquid ammonia is
[2008]
The hydrocarbon which can react with sodium in liquid ammonia is
[2008]
Q.154 Correct
Q.154 In-correct
Q.154 Unattempt
The treatment of CH3MgX with CH3CCH produces
[2008]
The treatment of CH3MgX with CH3CCH produces
[2008]
Q.155 Correct
Q.155 In-correct
Q.155 Unattempt
Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated wth cuprous bromide. The reaction mixture so formed contains
[2008]
Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated wth cuprous bromide. The reaction mixture so formed contains
[2008]
Q.156 Correct
Q.156 In-correct
Q.156 Unattempt
Which of the following reactions will yield 2, 2-dibromopropane?
[2007]
Which of the following reactions will yield 2, 2-dibromopropane?
[2007]
Q.157 Correct
Q.157 In-correct
Q.157 Unattempt
The compound formed as a result of oxidation of ethyl benzene by KMnO4 is
[2007]
The compound formed as a result of oxidation of ethyl benzene by KMnO4 is
[2007]
Q.158 Correct
Q.158 In-correct
Q.158 Unattempt
The reaction of toluene with Cl2 in presence of FeCl3 gives predominantly
[2007]
The reaction of toluene with Cl2 in presence of FeCl3 gives predominantly
[2007]
Q.159 Correct
Q.159 In-correct
Q.159 Unattempt
The major product obtained in the photo catalysed bromination of 2 -methylbutane is:
[2005, Online May 19, 2012; Online April 12,2014]
The major product obtained in the photo catalysed bromination of 2 -methylbutane is:
[2005, Online May 19, 2012; Online April 12,2014]
Q.160 Correct
Q.160 In-correct
Q.160 Unattempt
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is
[2005]
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is
[2005]
Q.161 Correct
Q.161 In-correct
Q.161 Unattempt
Which one of the following has minimum boiling point?
[2004]
Which one of the following has minimum boiling point?
[2004]
Q.162 Correct
Q.162 In-correct
Q.162 Unattempt
On mixing a certain alkane with chlorine and irradiating it with ultraviolet light, it forms only one monochloroalkane. This alkane could be
[2003]
On mixing a certain alkane with chlorine and irradiating it with ultraviolet light, it forms only one monochloroalkane. This alkane could be
[2003]
Q.163 Correct
Q.163 In-correct
Q.163 Unattempt
Reaction of one molecule of HBr with one molecule of 1 . 3-butadiene at 40C gives predominantly
[2003]
Reaction of one molecule of HBr with one molecule of 1 . 3-butadiene at 40C gives predominantly
[2003]
Q.164 Correct
Q.164 In-correct
Q.164 Unattempt
Butene- 1 may be converted to butane by reaction with
[2003]
Butene- 1 may be converted to butane by reaction with
[2003]
Q.165 Correct
Q.165 In-correct
Q.165 Unattempt
Which of these will not react with acetylene?
[2002]
Which of these will not react with acetylene?
[2002]
Q.166 Correct
Q.166 In-correct
Q.166 Unattempt
What is the product when acetylene reacts with hypochlorous acid?
[2002]
What is the product when acetylene reacts with hypochlorous acid?
[2002]
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