Question

For which order reaction, the unit of rate constant is $tim{e}^{-1}?$

• A. Zero order
• B. First order
• C. Second order
• D. Third order

Answer 1

The correct option is B First order

Units of rate constant for n order $=mo{l}^{1-n}{L}^{n-1}{S}^{-1}$.
Given, unit of rate constant$=mo{l}^0{L}^{0}tim{e}^{-1}$.
On comparing, $0=n-1$
$\because n=+1$