Assertion :Silicon is the most abundant electropositive element in the Earth's crust. Reason: It is a non-metal with a marked metallic luster and very brittle.

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 C Assertion is correct but Reason is incorrect
Silicon is ahard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid. It is the most abundant electropositive element in the Earths crust.

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