What is the total number of sigma and pi bonds in the following molecules? (a)` C_2H_2` (b) `C_2H_4` ​

Explanation

To determine the total number of sigma (σ) and pi (π) bonds in the given molecules \( C_2H_2 \) (acetylene) and \( C_2H_4 \) (ethylene), we can follow these steps:

### Step 1: Analyze the structure of \( C_2H_2 \) (Acetylene)
1. **Draw the Lewis structure**: Acetylene has a linear structure with a triple bond between the two carbon atoms and single bonds between each carbon and hydrogen atom.
2. **Identify the bonds**:
- The carbon-carbon triple bond consists of:
- 1 sigma bond
- 2 pi bonds
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