38 Which compound can be used to make propanoic acid by treatment with a single reagent?A CH2=CHCH 2CH3B CH3CH2 CH2 CNC CH3CH(OH)CND CH3CH(OH)CH 3

The compound that can be used to make propanoic acid by treatment with a single reagent is CH3CH2CH2CN (option B).

Here's the step-by-step process:

1. The compound CH3CH2CH2CN is also known as butyronitrile.

2. Butyronitrile can be hydrolyzed, or broken down by reaction with water. This is typically done in the presence of an acid or base.

3. The hydrolysis of butyronitrile results in the formation of propanoic acid and ammonia.

4. Therefore, by treating butyronitrile with a single reagent (water in the presence of an acid or base), you can produce propanoic acid.

So, the correct answer is B: CH3CH2CH2CN.