Which of the following organic compounds will undergo addition reactions?
`(a) C_2H_6 (b) C_2H_2 (c) C_3H_8 (d) C_3H_6`

Explanation

To determine which of the given organic compounds will undergo addition reactions, we need to identify whether each compound is saturated or unsaturated. Addition reactions typically occur in unsaturated hydrocarbons, which contain double or triple bonds. Let's analyze each compound step by step:

### Step 1: Analyze C2H6
- **Formula**: C2H6
- **Structure**: This compound has two carbon atoms, each bonded to three hydrogen atoms (H3C-CH3).
- **Type**: It contains only single bonds.
- **Saturation**: This is a saturated hydrocarbon (an alkane).
- **Conclusion**: C2H6 will NOT undergo addition reactions.
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