Assertion :The Daniell cell becomes dead after some time. Reason: Oxidation potential of zinc anode decreases and that of copper increases.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Daniell cell consists of a copper pot filled with a copper sulphate solution, in which an unglazed earthenware container filled with sulphuric acid and a zinc electrode is immersed.
Oxidation potential of copper increases and zinc decreases and the cell would become dead.

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