1.

A compound (X) with a molecualr formula C_(5)H_(10)O gives a positive2, 4-DNP test but a negative Tollens' test. On oxidation it gives a carboxylic acid (Y) witha molecular formulaC_(3)H_(6)O_(2). Potassium salt of (Y) undergoes Kolbe's reaction and gives a hydrocarbon (Z). (X), (Y) and (Z) respectively are

Answer»

PENTAN - 3 - one, propanoic acid, butane
pentanal, pentanoic acid, octane
2 - methylbutanone, butanoic acid, hexane
2, 2 - demethylpropanone, propanoic acid, hexane.

Solution :SINCE the compound gives positive 2, 4-DNP test and negative TOLLENS' test, it is a KETONE.


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