The product C of the reaction
`CH_(3)Cloverset(KCN)toAoverset(H_(2)O //H^(+))toBoverset(NH_(3))to`C is

Options

A. `HCONH_(2)`
B. `CH_(3)CN`
C. `CH_(3)CH_(2)NH_(2)`
D. `CH_(3)CONH_(2)`

Answer

To determine the product C from the given reactions, we will analyze each step of the reaction sequence.

### Step 1: Reaction of Chloromethane with KCN
The first reaction involves chloromethane (CH₃Cl) reacting with potassium cyanide (KCN). In this reaction, the cyanide ion (CN⁻) acts as a nucleophile and replaces the chlorine atom in chloromethane.

**Reaction:**
\[ \text{CH}_3\text{Cl} + \text{KCN} \rightarrow \text{CH}_3\text{CN} + \text{KCl} \]

**Product A:** The product formed in this step is acetonitrile (CH₃CN).

### Step 2: Hydrolysis of Acetonitrile
The next step involves the hydrolysis of acetonitrile (CH₃CN) in the presence of water (H₂O) and an acid (H⁺). During this reaction, the nitrile group (–C≡N) is converted to a carboxylic acid group (–COOH).

**Reaction:**
\[ \text{CH}_3\text{CN} + \text{H}_2\text{O} \xrightarrow{\text{H}^+} \text{CH}_3\text{COOH} \]

**Product B:** The product formed in this step is acetic acid (CH₃COOH).

### Step 3: Reaction of Acetic Acid with Ammonia
In the final step, acetic acid (CH₃COOH) reacts with ammonia (NH₃). Ammonia acts as a nucleophile and attacks the carbonyl carbon of the carboxylic acid, leading to the formation of an amide.

**Reaction:**
\[ \text{CH}_3\text{COOH} + \text{NH}_3 \rightarrow \text{CH}_3\text{CONH}_2 + \text{H}_2\text{O} \]

**Product C:** The product formed in this step is acetamide (CH₃CONH₂).

### Final Answer
Thus, the final product C is **acetamide (CH₃CONH₂)**.

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