Assertion :When an aldehyde is heated with $A g N O_{3}$ and $N H_{4} O H$ , a shining layer is formed on the inner walls of the test tube.
Reason: Aldehyde gets reduced to alcohol in this 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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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
When an aldehyde is heated with $A g N O_{3}$ and $N H_{4} O H$ following reaction occurs:
$A g N O_{3} + N H_{4} O H ⟶ A g O H + {N H}_{4} {N O}_{3} A g O H + 2 N H_{4} O H ⟶ [A g {{(N H}_{3})}_{2}] O H + 2 H_{2} O R C H O + [A g {{(N H}_{3})}_{2}] O H ⟶ R C O O N H_{4} + 2 A g + 2 N H_{3} + 2 H_{2} O$
Hence, a shining layer of silver is formed on the inner walls of the test tube.
But we see that aldehyde is not reduced in this reaction.
Hence, assertion is CORRECT, but reason is INCORRECT.

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