Assertion :Metals conduct electricity. Reason: Electrons are free and mobile in metals.

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
In metals, the bonding electrons can move freely from one end to other. They are delocalised over entire crystal and constitute sea of electrons. Due to presence of mobile electrons, metals are good electrical and thermal conductors.

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