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Chemistry Test 48
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Chemistry Test 48
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  • Question 1/10
    4 / -1

    A colloid prepared by the addition of KI to AgNO3 solution is purified using dialysis. Find the minimum mass in grams of an electrolyte 'AB' (GMM = 60) required to completely coagulate 1ℓ of the aforementioned colloid 

    Given :

    flocculation Flocculation
    value(mmole/ℓ)
    A+ 50
    B 100
  • Question 2/10
    4 / -1

    An electron in an atom jumps in such a way that its kinetic energy changes from x to x/4. The change in potential energy will be

    Solutions

     

  • Question 3/10
    4 / -1

    A given initial mass of KClO3 on 50% decomposition produces 67.2 litre oxygen gas at 0°C and 1 atm. The other product of decomposition is KCl. The initial mass of KClO3 (in gm) taken is.

    Solutions

     

  • Question 4/10
    4 / -1

    For the reaction takes place at certain temperature NH2COONH4(s)  2NH3(g) + CO2(g), if equilibrium pressure is X bar, then ΔrG° would be :-

    Solutions

     

  • Question 5/10
    4 / -1

    Equimolal aqueous solution of which of the following has lowest freezing point -

  • Question 6/10
    4 / -1

    In the following conversion of sulphide of phosphorous

    P4S3 → P2O5 + SO2

    Equivalent weight of P4S3 (molecular weight = M) is :

    Solutions

     

  • Question 7/10
    4 / -1

    Radius of cation and anion are 2.5Å & 2.6Å respectively. If a cubic crystal system is prepared by combination of above cation and anion then edge length of unit cell is (Take √3 = 1.7)

    Solutions

     

  • Question 8/10
    4 / -1

    Which of the following species has the maximum number of lone pairs on the central atom?

  • Question 9/10
    4 / -1

    Which of the following species have fractional bond order as well as paramagnetic nature?

  • Question 10/10
    4 / -1

    Which of the following is outer d-orbital complex?

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