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Question

Assertion :Sodium carbonate extract of a salt containing sulphide ions gives a violet colour with appropriate reagent. Reason: The reagent sodium nitroprusside gives violet colour due to the formation of sodium thionitroprusside.

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 A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Na2S+Na2[Fe(NO)(CN)5]Na4[Fe(NOS)(CN)5]violet
sodium nitroprusside gives violet colour due to the formation of sodium thionitroprusside.

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