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Sodium nitroprusside test is used to distinguish between

Answer»

alcohols and phenols
aldehydes and ketones
formic ACID and other carboxylic acids
`1^@ , 2^@` and `3^@` amines.

SOLUTION :Sodium nitroprusside test is used to DISTINGUISH between aldehydes and ketones . Alkaline solution of ketone react with nitroprusside to form coloured ion.
`CH_(3) underset("(Acetone)") (COCH_(3)) + OH^(-) to CH_(3) COCH_(2) + H_(2)O`
`underset("Nitroprusside ion")([Fe(CN)_(5) NO]^(2-)) + CH_3 COCH_(2)^(-) to [Fe (CN)_(5) underset("(red coloured)")(NO * CH_(3) CO) CH_(2)]^(3-)`
Aldehydes do not show this reaction .


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