A carbonyl compound with molecular mass 86, does not reduce Fehling's solution but forms crystalline bisulphite derivative and gives iodoform test. The possible compound is

Options

A. 2-pentanone and 3- pentanone
B. 2-pentanone and 3-methyl-2-butanone
C. 2-pentanone and pentanal
D. 3-pentanone and 3-methyl-2-butanone.

Answer

B

Explanation

Since the compound gives iodoform test, it is a methyl ketone. The isomers listed in option (b) respond to this test.