The hybridisation of carbons of C-C single bond of `HC-=C-CH=CH_(2)` is

Options

A. `sp^(3)-sp^(3)`
B. `sp-sp^(2)`
C. `sp^(3)-sp`
D. `sp^(2)-sp^(3)`

Explanation

To determine the hybridization of the carbons involved in the C-C single bond of the compound HC≡C-CH=CH₂, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure**:
The compound given is HC≡C-CH=CH₂. We need to focus on the carbon atoms involved in the C-C single bond.

2. **Label the Carbons**:
Let's label the carbon atoms in the structure for clarity:
- C1: The first carbon in the C-C single bond.
- C2: The second carbon in the C-C single bond.

3. **Count the Attached Atoms**:
- For **C1**:
- It is connected to one hydrogen (H) and one carbon (C2) in the single bond.
- Therefore, C1 has **2 atoms** attached to it (1 H + 1 C).
- For **C2**:
- It is connected to one hydrogen (H), one carbon (C1), and one carbon (C3) in the double bond.
- Therefore, C2 has **3 atoms** attached to it (1 H + 1 C + 1 C).

4. **Determine Hybridization**:
- According to hybridization rules:
- If there are 4 atoms attached, the hybridization is **sp³**.
- If there are 3 atoms attached, the hybridization is **sp²**.
- If there are 2 atoms attached, the hybridization is **sp**.
- For **C1** (2 atoms attached):
- Hybridization is **sp**.
- For **C2** (3 atoms attached):
- Hybridization is **sp²**.

5. **Conclusion**:
- The hybridization of C1 is **sp** and the hybridization of C2 is **sp²**.

### Final Answer:
The hybridization of the carbons in the C-C single bond of HC≡C-CH=CH₂ is **sp** for C1 and **sp²** for C2.

---