AIPMT PRELIMS2000Chemistry-Chemical Kinetics

AIPMT PRELIMS 2000 Chemistry Rate of Reaction MCQ Question

Type: MCQ-conceptual-Medium-Class 12

For the reaction H⁺ + BrO₃⁻ + 3Br⁻ → 3Br₂ + H₂O which of the following relation correctly represents the consumption & formation of reactants and products :

A

d[Br⁻]/dt = -3/5 d[Br₂]/dt

B

d[Br⁻]/dt = 3/5 d[Br₂]/dt

C

d[Br⁻]/dt = -5/3 d[Br₂]/dt

D

d[Br⁻]/dt = 5/3 d[Br₂]/dt

Correct Answer

Option A

Detailed Explanation

The stoichiometry of Br⁻ to Br₂ is 3:3, so the rate of consumption of Br⁻ is 5/3 times the rate of formation of Br₂.

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