Assertion : ${N H}_{4} {N O}_{3}$ undergoes a redox reaction to give $N_{2} O$ and $H_{2} O$ . Reason: It is a disproportionation 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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Assertion is incorrect but Reason is correct

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Solution

The correct option is C Assertion is correct but Reason is incorrect
${N H}_{4} {N O}_{3}$ undergoes a redox reaction to $N_{2} O$ and $H_{2} O$ .
${N H}_{4} {N O}_{3} \to N_{2} O + H_{2} O$
In this reaction, two nitrogen atoms in the reactant are present in different oxidation states. Hence, it is not a disproportionation reaction.
Hence, assertion is correct but reason is incorrect.

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