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

Options

A. (a) `s^(-1), M s^(-1)`
B. (b) `s^(-1), M`
C. (c ) `M s^(-1), s^(-1)`
D. (d) `M, s^(-1)`

Answer

a

Explanation

`K=(dx)/(dt[A])` for I order, unit `=sec^(-1)`
`K=(dx)/(dt)` for zero order, unit= mol `litre^(-1) sec^(-1)`