Assertion: The rate at which sugar dissolves in water increases with stirring.

Reason: Stirring exposes the surface of a solute crystal to a less concentrated layer of solution.

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

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

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Assertion is correct but Reason is not correct.

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Assertion is not correct but Reason is correct.

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Both Assertion and Reason are not correct.

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Solution

The correct option is A
Both Assertion and Reason are correct and Reason is the correct explanation of Assertion

The rate at which sugar dissolves in water increases with stirring because on stirring, sugar reaches every part of the solvent. So, the surface of the solute crystal gets exposed to the less concentrated layer of solution and hence, it dissolves faster.

Hence, the correct option is A.

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Assertion: The rate at which sugar dissolves in water increases with stirring. Reason: Stirring exposes the surface of a solute crystal to a less concentrated layer of solution.

Assertion: The rate at which sugar dissolves in water increases with stirring.

Reason: Stirring exposes the surface of a solute crystal to a less concentrated layer of solution.