Assertion :The transition metals exhibit higher enthalpies of atomization Reason: Due to strong metallic bond strength

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
The transition metals exhibit higher enthalpies of atomization due to presence of strong metallic bond which arises due to presence of unpaired electron in the $(n - 1) d$ subshell. Greater the number of valence electrons, stronger is the metallic bond.

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