Q. Iodoform can be prepared from all except

 1313  202 Haloalkanes and Haloarenes Report Error

Solution:

Iodoform reaction is given by alcohols and ketones containing
groups, respectively
Thus, among-the given compounds, isobutyl alcohol does not contain
image
Hence, it does not give iodoform reaction on treatment with
Hence, compounds (a), (b) and (c) will give iodoform while compound (d) (isobutyl alcohol) does not give any iodoform reaction.