Acetone and acetaldehyde can be distinguished by using_______.
NaHSO3
Grignard reagent
ammoniacal AgNO3
PCl5
A
NaHSO3
B
ammoniacal AgNO3
C
Grignard reagent
D
PCl5
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Solution
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Tollens' reagent is silver ammonia complex or ammoniacal AgNO3 solution.
It oxidizes acetaldehyde to acetic acid. Silver ions are reduced to silver metal. This gives silver mirror.
Such silver mirror is not obtained with acetone.
Hence, Tollens' reagent is used to distinguish acetaldehyde and acetone.
Option C is correct.
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