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In the first order reaction 75% of reactant disappeared in 1.386 h. Calculate the rate constant of reaction.

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In the first order reaction 75% of reactant disappeared in 1.386 h. Calculate the rate constant of reaction.

(a)  3.6 x 10-3 S-1

(b)  2.8  x 10-4 S-1

(c)  17.2 x 10-3 S-1

(d)  1.8  x 10-3 S-1

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Correct option (b) 2.8 x 10-4 S-1

Explanation:

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