Assertion :The reaction between powdered zinc and copper sulphate solution is faster than that between zinc granules and copper sulphate solution. Reason: The smaller the particles, the faster is the reaction.

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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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The reaction between powdered zinc and copper sulphate solution is faster than that between zinc granules and copper sulphate solution.
This is because one of the factors that control the rate of reaction is the size of the particles. The smaller the particles, the faster is the reaction.
Zinc granules are larger than powdered zinc. Hence, the rate of reaction is faster when powdered zinc is used.

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