Assertion : Boron is metalloid.
Reason : Boron shows metallic nature.

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If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If both assertion and reason me true and the reason is the correct explanation of the assertion

If the assertion and reason both are false.

answer is C.

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Detailed Solution

Explanation:

The assertion that boron is a metalloid is true because boron exhibits properties of both metals and non-metals, a defining characteristic of metalloids.

However, the reason that boron shows metallic nature is false. Boron primarily exhibits nonmetallic properties and does not show metallic nature, as it does not conduct electricity like metals or have other typical metallic characteristics. Hence, the reason is incorrect.

Final Answer

If assertion is true but reason is false.

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