Question

Hello frnds....can someone pls tell me what is ao here, a is the initial concentration?(q.no.1)

Answer 1

Hello again
It is a^0.=1
For first order reaction t½ is independent of the initial concentration a.As the t½ of first order reaction is 0.693/k where k is rate constant.
The correct answer is (2)
Because t½ of zero order reaction is a/2k so it is directly proportional to concentration a whereas for first order reaction t½ is independent of initial concentration as discussed earlier.
All the best!