Question

The rates of a certain reaction at different time intervals are as follows:
$\begin{array}{cccc}Time\left(second\right)& 0& 10& 20\\ Rate\left(mol{L}^{-1}{s}^{-1}\right)& 1.8\times {10}^{-2}& 1.82\times {10}^{-2}& 1.79\times {10}^{-2}\end{array}$
The reaction is of:

• A. zero order
• B. first order
• C. second order
• D. third order

Answer 1

The correct option is A zero order

There is no effect of reactant concentration of the rate. this is only possible in a $0$ order reaction.