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The reaction A toB follows first order r...

The reaction A `to`B follows first order reaction. The time taken for 0.8 mole of A to produce 0.6 mole of B is 1 hour. What is the time taken for conversion of 0.9 mole of A to produce 0.675 moles of B?

A

1 hour

B

0.5 hour

C

0.25 hour

D

2 hour

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The correct Answer is:
A
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