JEE CHEMISTRY MCQ: P-BLOCK ELEMENTS

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Analyzing +4 | -1

The gaseous decomposition of ozone

2 \mathrm{O}_3 \rightarrow 3 \mathrm{O}_2

follows the mechanism

\mathrm{O}_3 \stackrel{\mathrm{k}_{\mathrm{eq}}}{\rightleftharpoons} \mathrm{O}_2+\mathrm{O} \text { (Fast), } \mathrm{O}+\mathrm{O}_3 \xrightarrow{\mathrm{k}_1} 2 \mathrm{O}_2 \text { (Slow) }

Determine the order of reaction with respect to

\mathrm{O}_2

View answer and explanation

Correct option: A

-1

Option A (-1) is correct because the rate law derived from the given mechanism shows that the reaction order with respect to O2 is -1.

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