Appeared in: 2023 (3 sets)
Assertion (A) : The molecularity of the reaction $\text{H}_2 + \text{Br}_2 \longrightarrow 2\text{HBr}$ appears to be 2.
Reason (R) : Two molecules of the reactants are involved in the given elementary reaction.
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Official Evaluation Steps & EL10 Insight
Step 1 (Formula / Governing Law & Given Data): [0.5 Mark]