Which from following is correct regarding t_ 1/2 of reaction if we double the initial concentration of a reactant in first order reaction?

MHT CET 2025 Chemistry question

Which from following is correct regarding of reaction if we double the initial concentration of a reactant in first order reaction?

(A) will increase by two times
(B) will decrease by four times
(C) remains the sameCorrect
(D) will decrease by two times

Answer: (C)

Solution

For a first order reaction the half-life is , which contains only the rate constant and no concentration term. Doubling the initial concentration therefore does not

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Question ID VK-100724