Methanamide is reduced to methanamine with:

Options

A. a.`LAH`
B. b.`NaBH_(4)`
C. c.`H_(2)+Ni`
D. d.`B_(2)H_(6)`

Explanation

To solve the question of how methanamide is reduced to methanamine, we will follow these steps:

### Step 1: Identify the Reactants and Products
- **Reactant**: Methanamide (HCONH2)
- **Product**: Methanamine (CH3NH2)

### Step 2: Understand the Structure of Methanamide
- Methanamide has the structure where a carbonyl group (C=O) is bonded to a nitrogen atom (NH2). This is a typical structure of an amide.

### Step 3: Determine the Type of Reaction
- The reaction we are considering is a reduction reaction, where the carbonyl group (C=O) in methanamide will be converted to a primary amine (NH2) in methanamine.

### Step 4: Identify Suitable Reducing Agents
- We need to choose a reducing agent that can effectively reduce the amide group in methanamide to the amine group in methanamine.

### Step 5: Evaluate the Given Reducing Agents
1. **Lithium Aluminum Hydride (LiAlH4)**:
- This is a strong reducing agent that can reduce amides to amines.
- **Conclusion**: Suitable for the reaction.

2. **Sodium Borohydride (NaBH4)**:
- This reducing agent is generally used for aldehydes and ketones but is not effective for reducing amides.
- **Conclusion**: Not suitable for the reaction.

3. **Hydrogen in the presence of Nickel Catalyst**:
- This method can reduce various functional groups, including amides to amines.
- **Conclusion**: Suitable for the reaction.

4. **B2S6 (Diborane)**:
- This reducing agent is also capable of reducing amides to amines.
- **Conclusion**: Suitable for the reaction.

### Step 6: Final Answer
- The suitable reducing agents for reducing methanamide to methanamine are:
- **A. Lithium Aluminum Hydride (LiAlH4)**
- **C. Hydrogen in the presence of Nickel Catalyst**
- **D. B2S6 (Diborane)**

### Summary of the Answer
Methanamide can be reduced to methanamine using the following reducing agents:
- Lithium Aluminum Hydride (LiAlH4)
- Hydrogen in the presence of Nickel Catalyst
- B2S6 (Diborane)