Mark the correct statement

Options

A. Methyl amine is slightly acidic
B. Methyl amine is less basic than `NH_(3)`
C. Methyl amine is stronger base than `NH_(3)`
D. Methyl amine forms salts with alkalies

Explanation

To solve the question, we need to evaluate the statements about methylamine (CH3NH2) and determine which ones are correct.

### Step-by-Step Solution:

1. **Evaluate Option A: Methylamine is slightly acidic.**
- Methylamine (CH3NH2) has a lone pair of electrons on the nitrogen atom, which allows it to act as a base by donating that lone pair. While it can also act as an acid due to the presence of the hydrogen atom attached to nitrogen, it is primarily known for its basic properties. Therefore, this statement is **true**.

2. **Evaluate Option B: Methylamine is less basic than NH3.**
- Methylamine is actually more basic than ammonia (NH3). This is because the methyl group (CH3) is an electron-donating group (through +I effect), which increases the electron density on the nitrogen atom, making it a stronger base. Thus, this statement is **false**.

3. **Evaluate Option C: Methylamine is a stronger base than NH3.**
- As established in the previous step, methylamine does indeed have greater basicity compared to ammonia due to the electron-donating effect of the methyl group. Therefore, this statement is **true**.

4. **Evaluate Option D: Methylamine forms salt with alkali.**
- Methylamine can react with acids to form salts, and it can also react with alkali (strong bases) to form corresponding salts. Therefore, this statement is also **true**.

### Conclusion:
Based on the evaluation:
- Option A: True
- Option B: False
- Option C: True
- Option D: True

Thus, the correct statements are A, C, and D.

### Final Answer:
The correct statements are A, C, and D.