# NEET Chemistry Chemical Kinetics Questions Solved

Assertion : For a first order reaction, the degree of dissocation is equal to $\left(1-{e}^{-kt}\right)$

Reason  : For a first order reaction, the pre-exponential factor in the Arrhenius equation has the dimension of $tim{e}^{-1}$

(B). For a first order reaction,

So, degree of dissocation = (1 – exp (–kt)

For a first order reaction,

Thus, the units of A are the same as that for k. For a first order reaction, the units of k are those of time${}^{-1}$. So the units of A are also those of time${}^{-1}$

Difficulty Level:

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