Assertion: The electrical conductivity of an alloy is less than that of pure metals.

Reason: An alloy is prepared by mixing the metals in molten form.

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Both Assertion and Reason are true and Reason is the correct explanation of the Assertion.

Both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

Assertion is true but Reason is false

Assertion is false but Reason is true

answer is B.

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Detailed Solution

Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
Assertion: An alloy is a mixture of metal and metal or metal with non-metal. The electrical conductivity in alloys is quite less than the electrical conductivity in metals. An alloy and metal conduct electricity, but due to the presence of impurities in alloys, electrical conductivity is less. The impurities in non-metals may be non-metals or any other substances.
Reason: The bulk of alloys are created by mixing metals while they are still molten, then pouring the liquid into moulds made of metal or sand and allowing it to set. Typically, the main ingredient is melted first; the remaining ingredients are then added, and they should fully dissolve.

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