Assertion :The half-life of a radioactive species is independent of temperature and amount of active species. Reason: Radioactive decay takes infinite time to complete decay a given sample.

Assertion is correct but Reason is wrong

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Assertion is wrong but Reason is correct

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Both Assertion and Reason are correct and Reason is correct explanation of Assertion

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Both Assertion and Reason are correct but Reason is not correct explanation of Assertion

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Solution

The correct option is D Both Assertion and Reason are correct but Reason is not correct explanation of Assertion
The radioactive decay is a first order process. Hence, the half life period of the radioactive decay is given by the expression $T_{1 / 2} = \frac{0.693}{λ}$ .
Thus it depends only on the value of the decay constant and is independent of the temperature and amount of active species.
Hence, Radioactive decay takes infinite time to complete decay a given sample.
Thus, Both Assertion and Reason are correct but Reason is not correct explanation of Assertion.

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Q. Given below is assertion and reason.
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