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I < II < III
A catalyst provides an alternate pathway or reaction mechanism.
Directions: Match the order of the reaction from column - I with the reaction characteristics from column - II in the following table.
(A) - (c), (B) - (d), (C) - (a), (D) - (b)
Directions: The following question has four choices out of which ONLY ONE is correct.
The experimental data for the reaction 2A + B2→2AB is given in the table below:
The rate equation for the above data is
rate = k[B2]
Correct option is 15 keV.
The half-life of 131I is 8 days. If we have a sample of 131I at time t = 0, we can assert that
a given nucleus may decay any time after t = 0
A radioactive nuclide can decay simultaneously by two different processes, which have individual decay constants λ1 and λ2. The effective decay constant of the nuclide ( λ ) is given by
λ=λ1+λ2
The most stable nucleus is26Fe56
23.6 MeV
Correct Answer : The mean life of the sample is 1/2 hr.
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