# If the rate of the reaction is equal to the rate constant, the order of the reaction is

1. A

3

2. B

0

3. C

1

4. D

2

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### Solution:

$\because \text{​\hspace{0.17em}\hspace{0.17em}}\mathrm{r}=\mathrm{k}{\left[\mathrm{A}\right]}^{\mathrm{n}}$

if n= 0

or r = k thus for zero order reactions rate is equal to the rate constant

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