Assertion :All homogeneous substances are pure. Reason: Alloys are homogeneous mixtures of solids.

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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Assertion is incorrect but Reason is correct

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Solution

The correct option is D Assertion is incorrect but Reason is correct
Alloys are a homogeneous mixture of two or more metals. However, since an alloy is homogeneous does not imply that it should be pure.

In fact, homogeneous means that the substance has the same composition throughout whereas pure substances are those substances that cannot be physically separated without breaking its chemical chain.

However homogeneous mixtures can be easily separated using physical methods.

Hence Assertion is incorrect but the Reason is correct.

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