Assertion :Group 2 metals have higher melting points when compared to the group 1 metals. Reason: +2 charge on the cations in the metallic lattice causes them to be more strongly attracted to the sea of electrons and making it difficult to pull them apart.

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
IA $n s^{1}$
IIA $n s^{2}$ so they have valency of +2 and +2 charge on the cations in the metallic lattice causes them to be more strongly attracted to the sea of electrons and making it difcult to pull them apart so they have high melting point.

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