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Standard XII

Chemistry

Potassium Permanganate

Assertion : ...

Question

Assertion : $K M n O_{4}$ acts as an oxidising agent in acidic, basic or neutral medium. Reason: $K M n O_{4}$ oxidises ferrous sulphate to ferric sulphate.

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 B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Due to $M n$ in $K M n O_{4}$ being at $+ 7$ oxidation state acts as an oxidizing agent in all the three mediums. Hence assertion is correct and the reason is also correct but reason is not able to explain assertion

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Assertion (A) Addition reaction of water to but-1-ene in acidic medium yields butan-1-ol.
Reason (R) Addition of water in acidic medium proceeds through the formation of primary carbocation.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

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Assertion :KMnO4 acts as an oxidising agent in acidic, basic or neutral medium. Reason: KMnO4 oxidises ferrous sulphate to ferric sulphate.

Assertion : $K M n O_{4}$ acts as an oxidising agent in acidic, basic or neutral medium. Reason: $K M n O_{4}$ oxidises ferrous sulphate to ferric sulphate.