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The thermal decomposition of a compound ...

The thermal decomposition of a compound is of first order. If `50%` of a sample of the compound is decomposed in 120 minutes, how long it take for `90%` of the compounds to decompose.

A

About 240 minutes

B

About 560 minutes

C

About 45 minutes

D

About 400 minutes

Text Solution

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The correct Answer is:
D
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