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Assertion :In...

Question

Assertion :In aqueous solution, $S O_{2}$ reacts with $H_{2} S$ liberating sulphur. Reason: $S O_{2}$ is an effective reducing agent.

A

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

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B

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

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C

Assertion is correct but Reason is incorrect

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D

Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
$S O_{2}$ is an effective reducing agent but it can also acts as oxidising agent in presence of strong reducing agent such as $H_{2} S$ .It oxidises $H_{2} S$ to $S$ .
So both Assertion and Reason are correct but Reason is not correct explanation for Assertion.

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