Number of bonds in benzene is

Options

A. `6 sigma` and `3pi`
B. `12 sigma` and `3pi`
C. `3 sigma` and `12 pi`
D. `6 sigma` and `6 pi`

Explanation

To determine the number of bonds in benzene (C6H6), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure of Benzene**:
Benzene is a cyclic compound with the formula C6H6. It consists of six carbon atoms arranged in a hexagonal ring, with alternating double bonds.

2. **Count the Carbon-Carbon Bonds**:
In benzene, there are 6 carbon atoms. Each carbon atom is bonded to two other carbon atoms in the ring. The structure can be represented as:
- C1 - C2
- C2 - C3
- C3 - C4
- C4 - C5
- C5 - C6
- C6 - C1

This gives us a total of 6 carbon-carbon bonds.

3. **Identify the Type of Bonds**:
In benzene, there are alternating single and double bonds. Each double bond consists of one sigma bond and one pi bond. However, due to resonance, benzene is often represented as having equal bond character among all carbon-carbon bonds.

Thus, we can consider:
- 6 sigma bonds from the carbon-carbon connections.
- 3 pi bonds from the double bonds (since there are 3 double bonds in the resonance structure).

4. **Count the Carbon-Hydrogen Bonds**:
Each carbon atom in benzene is also bonded to one hydrogen atom. Since there are 6 carbon atoms, there are 6 carbon-hydrogen bonds.

5. **Total the Bonds**:
- Total Carbon-Carbon Bonds: 6 (sigma) + 3 (pi) = 9 bonds
- Total Carbon-Hydrogen Bonds: 6 (sigma)
- Therefore, the total number of bonds in benzene = 9 (C-C bonds) + 6 (C-H bonds) = 15 bonds.

### Final Answer:
The total number of bonds in benzene is **15**.

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