Question

lodoform test is not answered by:

• A. $C{H}_{3}CHO$
• B. $C{H}_{3}OH$
• C. $C{H}_{3}COC{H}_3$
• D.

Answer 1

The correct option is B $C{H}_{3}OH$

The iodoform reaction been used as a chemical test for the presence of a methyl ketone$(-C{H}_{3}CO)$ moiety.
Acetone and acetaldehyde have methyl ketone moiety thus give iodoform reaction. Only those alcohols which contain $-CHOHC{H}_3$ group undergo haloform reaction. thus a, c and d will give iodoform test.
Iodoform test is not answered by methanol $C{H}_{3}OH.$