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In a first order reaction, half of the reaction is completed in 100 seconds. The time for 99% reaction to occur will be :

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In a first order reaction, half of the reaction is completed in 100 seconds. The time for 99% reaction to occur will be : 

(a) 664.6 seconds 

(b) 600 seconds 

(c) 630.2 seconds 

(d) 676.6 seconds 

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Correct option (a) 664.6 seconds

Explanation:

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