The reaction of `H_(3)N_(3)B_(3)Cl_(3)(A)` with `LiBH_(4)` in tetrahydrofuran gives inorganic benzene (B). Further, the reaction of (A) with (C) leads of `H_(3)N_(3)B_(3)(Me)_(3)`. Compounds (B) and (C) respectively , are :

Options

A. Boran nitride and MeBr
B. Diborane and MeMgBr
C. Borazine and MeBr
D. Borazine and MeMgBr

Answer

To solve the given problem, we need to identify the compounds B and C based on the reactions involving compound A, which is \( H_3N_3B_3Cl_3 \).

### Step-by-Step Solution:

1. **Identify Compound A**:
- Compound A is \( H_3N_3B_3Cl_3 \). This is a boron-nitrogen compound that contains boron (B) and nitrogen (N) atoms.

2. **Reaction of A with LiBH4**:
- When \( H_3N_3B_3Cl_3 \) reacts with lithium borohydride (\( LiBH_4 \)) in tetrahydrofuran (THF), it leads to the formation of an inorganic benzene.
- The reaction can be represented as:
\[ H_3N_3B_3Cl_3 + LiBH_4 \rightarrow H_3N_3B_3H_3 + LiCl + BH_3 \cdot THF \]
- The product \( H_3N_3B_3H_3 \) is known as borazine, which is often referred to as inorganic benzene (B).

3. **Identify Compound B**:
- From the above reaction, we conclude that compound B is \( H_3N_3B_3H_3 \) (borazine).

4. **Reaction of A with C**:
- The problem states that the reaction of A with another compound C leads to the formation of \( H_3N_3B_3Me_3 \).
- To achieve this, compound C must be a methylating agent. A common reagent for methylation in organometallic chemistry is methyl magnesium bromide (\( CH_3MgBr \)).
- The reaction can be represented as:
\[ H_3N_3B_3Cl_3 + CH_3MgBr \rightarrow H_3N_3B_3Me_3 + MgBrCl \]
- This reaction replaces the chlorine atoms in compound A with methyl groups, resulting in \( H_3N_3B_3Me_3 \).

5. **Identify Compound C**:
- From the above reaction, we conclude that compound C is \( CH_3MgBr \) (methyl magnesium bromide).

### Final Answer:
- Compound B is \( H_3N_3B_3H_3 \) (borazine).
- Compound C is \( CH_3MgBr \) (methyl magnesium bromide).

### Summary:
- **Compound B**: \( H_3N_3B_3H_3 \) (borazine)
- **Compound C**: \( CH_3MgBr \) (methyl magnesium bromide)