A compound that given a positive iodoform test is

Options

A. 1-pentanol
B. 2-pentanone
C. 3-pentanone
D. pentanal

Answer

B

Explanation

Iodoform test is given by only those compounds that contain a
`-underset(O)underset(||)(C)-CH_(3)` or `-underset(OH)underset(|)(C)H-CH_(3)`
groupo, i.e., pentanone-2 will respond to this test as it contains
`-underset(O)underset(||)(C) -CH_(3)` group.
The structure of pentanone-2 is
`CH_(3)-CH_(2)-CH_(2)-underset(O)underset(||)(C )-CH_(3)`