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Q.

$t_{99.9 %}$ of a first order reaction is 100 minutes. Rate constant of the reaction is

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a

0.0693 minutes

b

2.303 minutes

c

0.693 minutes

d

23.03 minutes

answer is C.

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Detailed Solution

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$t_{99.9 %} = 10 t_{1 / 2}$

$t_{1 / 2} = 10 \min$

$K = \frac{0.693}{10} m$

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