The plot of t`(1)/(2)` V/s [R]0 for a reaction is a straight-line parallel to x-axis.The unit for the rate constant of this reaction is

Options

A. mol `L^(-1)` s
B. mol `L^(-1) s^(-1)`
C. L `mol^(-1) s^(-1)`
D. `s^(-1)`

Answer

D

Explanation

(d): Plot of `t_(1//2)` vs `[R]_(0)` for a reaction is a straight line parallel to x-axis, means `t_(1//2)` is independent of `[R]_(0)` hence, the reaction is first order.
`:.` Unit of rate constant `= s^(-1)`