Which one of the following compounds gives methane on treatement with water?

Options

A. `Al_(4)C_(3)`
B. `CaC_(2)`
C. `VC`
D. `SiC`

Explanation

To solve the question "Which one of the following compounds gives methane on treatment with water?", we will analyze the options provided and determine which compound can produce methane (CH₄) when treated with water.

### Step-by-Step Solution:

**Step 1: Understand the Hydrolysis Reaction**
- Hydrolysis is a chemical reaction involving water that leads to the breakdown of a compound. In this case, we are looking for a compound that can produce methane when it reacts with water.

**Step 2: Identify the Relevant Compounds**
- We need to consider the compounds provided in the options (let's assume they are A, B, C, and D) and see which one can yield a carbon anion (C⁴⁻) upon hydrolysis, as this is necessary for the formation of methane.

**Step 3: Analyze Each Compound**
- Among the compounds, we focus on Al₄C₃ (aluminum carbide). This compound is known to react with water to produce methane.

**Step 4: Write the Reaction for Al₄C₃**
- The reaction of aluminum carbide (Al₄C₃) with water can be represented as:
\[ \text{Al}_4\text{C}_3 + 12 \text{H}_2\text{O} \rightarrow 3 \text{CH}_4 + 4 \text{Al(OH)}_3 \]
- In this reaction, aluminum carbide reacts with water to produce methane (CH₄) and aluminum hydroxide (Al(OH)₃).

**Step 5: Conclusion**
- From the analysis, we conclude that the compound that gives methane upon treatment with water is Al₄C₃. Therefore, the correct answer is option A.

### Final Answer:
**Option A (Al₄C₃) is the correct answer.**

---