Which of the following compounds can have a triple bond?

Options

A. `C_(2)H_(6)`
B. `C_(3)H_(4)`
C. `C_(3)H_(8)`
D. `C_(3)H_(6)`

Explanation

To determine which of the given compounds can have a triple bond, we need to identify the compounds that fall under the category of alkynes. Alkynes are hydrocarbons that contain at least one triple bond between carbon atoms. The general formula for alkynes is CnH2n-2, where "n" is the number of carbon atoms.

### Step-by-Step Solution:

1. **Identify the General Formula for Alkynes**:
- The general formula for alkynes is CnH2n-2. This means for every n carbon atoms, there are 2n-2 hydrogen atoms.

2. **Evaluate Each Option**:
- We will evaluate the given compounds based on the formula CnH2n-2 to see if they can be classified as alkynes.

3. **Option 1: C2H6**:
- Here, n = 2.
- Using the formula:
- CnH2n-2 = C2H2(2) - 2 = C2H2(4 - 2) = C2H4.
- Since C2H6 does not match C2H4, this compound cannot have a triple bond.

4. **Option 2: C3H4**:
- Here, n = 3.
- Using the formula:
- CnH2n-2 = C3H2(3) - 2 = C3H2(6 - 2) = C3H4.
- Since C3H4 matches the formula, this compound can have a triple bond and is classified as an alkyne.

5. **Conclusion**:
- The only compound that can have a triple bond is C3H4.

### Final Answer:
- The compound that can have a triple bond is **C3H4**.