alleryThe rate law for a reaction must be:
ADetermined experimentally
BEqual to the molecularity of the reaction
CAlways first-order
DPredicted from the balanced chemical equation
Answer & Solution
Correct answer: A. Determined experimentally
**Critical NEET point:** **rate law cannot be predicted from the balanced equation — it must be determined experimentally**.
The exponents (x, y) in Rate = k[A]^x [B]^y may or may not match the stoichiometric coefficients.
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