Question

The number of molecules which gives haloform test among the following molecules is

Hint:

The halform test is used to identify compounds containing a methyl ketone group (\( -COCH_3 \)) or a similar structure.

Answer 1

Correct Answer: 3

Molecules having

gives positive haloform test.
So , 

gives haloform test
So, the correct answer is 3.

Answer 2

The halform test is positive for compounds that contain a methyl group directly attached to a carbonyl group (i.e., the \( \text{CH}_3\text{-CO-} \) functional group) or other reactive groups like \( \text{CH}_3\text{-CO-H} \).

Looking at the structures:

• The molecules \( \text{C} = \text{O} - \text{CH}_3 \) and \( \text{OH} - \text{C} - \text{CH}_3 \) give a positive halform test because they both have the required functional groups for the reaction.
• The other molecules do not meet the criteria.

Thus, the number of molecules giving a positive halform test is 3.