Indicate the `sigma ` and `pi` bonds in the following molecules:
`C_6 H_6 ,C_6H_(12) ,CH_2 Cl_2 , CH_2 =C=CH_2, CH_3 NO_2 ,HCNHCH_(3)`

Explanation

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

### Step 1: Analyzing C₆H₆ (Benzene)
1. **Structure**: Benzene has a hexagonal ring structure with alternating double bonds.
2. **Bonds**: Each carbon-carbon bond is a sigma bond, and each double bond has one sigma bond and one pi bond.
3. **Count**:
- 6 carbon-carbon (C-C) sigma bonds.
- 3 pi bonds (from the three double bonds).
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