MHT CET 2023 Chemistry question

A first order reaction takes 23.03 minutes for 20% decomposition. Calculate it's rate constant.

Answer: (D)

Solution

For a first order reaction . 20% decomposition means that if , then . So \frac{2.303}{23.03\ min}$ = 0.1\ ×(1.25) = 0.1× 0.0969 =

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Question ID VK-097266