Units of rate constant of first and zero order reactions in terms of molarity `M` are respectively:

Options

A. `sec^(-1),M sec^(-1)`
B. `sec^(-1),M`
C. `M sec^(-1),sec^(-1)`
D. `M,sec^(-1)`

Answer

A

Explanation

Units of reaction for first order reactions are `sec^(-1)` and for zero order reactions these are `"mol L"^(-1)sec^(-1)` i.e., `M sec^(-1)`.