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Time required for 99.9% completion of a first order reaction is _____ time the time required for com — JEE Mains Chemistry Past Papers Chemistry Question

Question

Time required for 99.9% completion of a first order reaction is _____ time the time required for completion of 90% reaction.(nearest integer).

Answer: .

💡 Solution & Explanation

K = 99.9% 90% 100 100 n n t 0.1 t              t99.9% = t90% n(10 ) n10 t99.9% = t90% × 3

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