MHT CET 2022 Chemistry question

Chemistry Chemical Kinetics MHT CET 2022

The rate law for a reaction between reactants A, B and C is r = K [A] [B] [C], if concentration of a is halved, then rate of reaction

(A)increases times
(B)remains the same
(C)decreases timesCorrect
(D)increase 2 times

Answer: (C)

Solution

The rate is first order in A, so . When becomes with and unchanged, . The rate is

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Question ID VK-095916