Assertion :Type metal, an alloy of lead, is used for making moulds. Reason: Lead expands on solidification.

If both assertion and reason are correct and reason is the correct explanation of the assertion.

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

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If assertion is correct, but reason is incorrect.

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If assertion is incorrect, but reason is correct.

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Solution

The correct option is A If both assertion and reason are correct and reason is the correct explanation of the assertion.
Type metal is an alloy of Lead which expands on solidification and used for making moulds.

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Assertion :Type metal, an alloy of lead, is used for making moulds. Reason: Lead expands on solidification.

The correct option is A If both assertion and reason are correct and reason is the correct explanation of the assertion.Type metal is an alloy of Lead which expands on solidification and used for making moulds.

The correct option is A If both assertion and reason are correct and reason is the correct explanation of the assertion.
Type metal is an alloy of Lead which expands on solidification and used for making moulds.