Assertion :Sulphuric dioxide and chlorine are both bleaching agents. Reason: Both are reducing agents.

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 C Assertion is correct but Reason is incorrect
Assertion
Sulphuric dioxide and chlorine are both bleaching agents.
Reason
Sulphuric dioxide is strong reducing agent as well as oxidising agent. Its bleaching action is due to reduction.
$S O_{2} + 2 H_{2} O \to H_{2} S O_{4} + 2 [H]$
Chlorine is oxidising agent. Oxidizing nature of chlorine is responsible for bleaching action.
$C l_{2} + H_{2} O \to 2 H C l + [O]$
Vegetable colouring matter $+ [O] \to$ colourless matter.
Assertion is correct but Reason is incorrect

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