To answer this, we must identify which given molecules can give the haloform test.

1. Condition for haloform test

A compound gives the haloform test if it contains either:

1. a methyl ketone group:

2. or a structure that can be oxidized to a methyl ketone, such as:

3. Ethanal $CH_3CHO$ is also a positive case.

The test ultimately requires the presence of a $CH_3CO-$ unit (or its oxidizable precursor).

2. Issue with the given question

The question says:

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

But in the provided prompt, the actual list/structures of molecules is missing. Without the molecules, the count cannot be derived directly from the question statement alone.

3. Comparison with stored answer

The stored correct answer is given as:

Since the list of molecules is absent, I cannot independently verify by evaluating each molecule one by one.

So, based only on the provided stored answer, the number is taken as:

4. Final answer

The number of molecules giving haloform test is: