`CH_(3)"CCl"_(3)overset("hydrolysis")rarr " acid - 2"`
Correct answer is

Options

A. `(pK_(a))_(HCN) gt (pK_(a))_("acid - 2")`
B. `(pK_(a))_("HCN")=(pK_(a))_("acid - 2")`
C. `(pK_(a))_("HCN")lt (pK_(a))_("acid-2")`
D. All of these

Answer

To solve the question regarding the hydrolysis of CH₃CCl₃, we will go through the steps of the reaction and identify the product formed.

### Step-by-Step Solution:

1. **Identify the Reactant**: The compound given is CH₃CCl₃ (trichloroethane). This compound contains a carbon atom bonded to three chlorine atoms and one methyl group (CH₃).

2. **Understand Hydrolysis**: Hydrolysis involves the reaction of a compound with water (or hydroxide ions, OH⁻ in this case). In this scenario, we are considering the reaction in the presence of hydroxide ions.

3. **SN2 Reaction Mechanism**: The hydrolysis of CH₃CCl₃ will proceed via an SN2 mechanism. In this reaction, one of the chlorine atoms will be replaced by a hydroxyl group (OH) as the nucleophile attacks the carbon atom.

4. **Formation of Intermediate**: After the SN2 reaction, we will have an intermediate compound with the structure CH₃C(OH)Cl₂. Here, one chlorine atom has been replaced by a hydroxyl group.

5. **Stability of the Intermediate**: The intermediate CH₃C(OH)Cl₂ is not stable because it has three hydroxyl groups (OH) attached to the same carbon atom. Therefore, it will undergo dehydration.

6. **Dehydration Reaction**: During dehydration, a water molecule is eliminated from the intermediate, leading to the formation of a carbonyl compound. The resulting compound will be CH₃C(=O)OH, which is acetic acid.

7. **Final Product**: The final product of the hydrolysis of CH₃CCl₃ is acetic acid (CH₃COOH). This is referred to as "acid-2" in the question.

8. **Comparative Acidity**: The question also involves comparing the acidity of acetic acid (CH₃COOH) with hydrogen cyanide (HCN). Acetic acid is a stronger acid than HCN, which can be confirmed by comparing their pKa values.

### Conclusion:
The correct answer to the question is that the product formed from the hydrolysis of CH₃CCl₃ is acetic acid (CH₃COOH), referred to as "acid-2".