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The rate of a reaction at different times \( \left(-\frac{d x}{d t}\right) \) is found as follows
\begin{tabular}{|l|l|}
\hline Time (in minutes) & Rate (in mole L-1 \( \mathrm{S}^{-1} \) ) \\
\hline 0 & \( 2.80 \times 10^{-2} \) \\
\hline 10 & \( 2.78 \times 10^{-2} \) \\
\hline 20 & \( 2.81 \times 10^{-2} \) \\
\hline 30 & \( 2.79 \times 10^{-2} \) \\
\hline
\end{tabular}
- The order of reaction is
(A) zero
(B) one
(C) two
(D) three
\( \mathrm{P} \)
W
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