Assertion :Nuclear-fission is a chain reaction. Reason: Extra electrons formed in the intermediate steps further attack the nuclei.

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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Assertion is incorrect but Reason is correct

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Nuclear-fission is a chain reaction. Extra neutrons formed in the intermediate steps further attack the nuclei due to which the fission process continues.
Thus, Assertion is correct but Reason is incorrect.

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