`CH_(3)NH_(2)+CHCl_(3)+KOH to` nitrogen containing compound `+KCl+H_(2)O`. Nitrogen containing compound is

Options

A. `CH_(3) - C -= N`
B. `CH_(3) - NH - CH_(3)`
C. `CH_(3) - overset(theta)(N) -= overset(o+)(C)`
D. `CH_(3) overset(o+)(N) -= overset(theta)(C)`

Explanation

To solve the given question, we need to analyze the reaction between methylamine (CH₃NH₂), chloroform (CHCl₃), and potassium hydroxide (KOH). This reaction is a classic example of the carbylamine reaction, which is used to identify primary amines.

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The reactants are methylamine (CH₃NH₂), chloroform (CHCl₃), and potassium hydroxide (KOH).
- Methylamine is a primary amine.

2. **Understand the Reaction Type**:
- The reaction is known as the carbylamine reaction, which occurs specifically with primary amines.
- In this reaction, the primary amine reacts with chloroform in the presence of a strong base (KOH) to form an isocyanide.

3. **Write the Reaction**:
- The primary amine (CH₃NH₂) reacts with chloroform (CHCl₃) and KOH to produce methyl isocyanide (CH₃N≡C), potassium chloride (KCl), and water (H₂O).
- The overall reaction can be represented as:
\[ CH₃NH₂ + CHCl₃ + KOH \rightarrow CH₃N≡C + KCl + H₂O \]

4. **Identify the Nitrogen-Containing Compound**:
- The nitrogen-containing compound formed in this reaction is methyl isocyanide (CH₃N≡C).
- This compound is characterized by the presence of a carbon-nitrogen triple bond.

5. **Final Products**:
- In addition to methyl isocyanide, the other products of the reaction are potassium chloride (KCl) and water (H₂O).

### Conclusion:
The nitrogen-containing compound formed in the reaction is **methyl isocyanide (CH₃N≡C)**.