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JEE Main Chemistry question

ChemistryChemical KineticsJEE Main

Consider the reaction. When concentration of B alone was doubled, the half-life did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is [AIEEE 2007]

Answer: (A)

Solution

Half-life being independent of a reactant's own initial concentration is the signature of first order with respect to that reactant (as established for first-order kinetics), so the reaction is first

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Question ID VK-144226