Indicate the `sigma`-and -bonds in the following molecules :
`C_(6)H_(6), C_(6)H_(12), CH_(2)Cl_(2), CH_(2) = C = CH_(2), CH_(3)NO_(2), HCONHCH_(3)`

Explanation

To determine the number of sigma (σ) and pi (π) bonds in the given molecules, we will analyze each molecule step by step.

### Step 1: C₆H₆ (Benzene)
1. **Structure**: Benzene is a cyclic molecule with alternating double bonds.
2. **Bonds**:
- Each carbon (C) is bonded to two other carbons and one hydrogen (H).
- There are 6 C-H bonds and 6 C-C bonds.
3. **Counting Bonds**:
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