Write the valency of carbon in `C_2H_6` & `C_2H_2`

Explanation

To determine the valency of carbon in the compounds \(C_2H_6\) (ethane) and \(C_2H_2\) (ethyne), we can follow these steps:

### Step 1: Understand the structure of \(C_2H_6\)
- Ethane (\(C_2H_6\)) consists of two carbon atoms and six hydrogen atoms.
- The structure can be represented as \(CH_3-CH_3\), where each carbon atom is bonded to three hydrogen atoms and one carbon atom.

### Step 2: Determine the bonds for each carbon in \(C_2H_6\)
- Each carbon atom in ethane forms four bonds in total: three with hydrogen atoms and one with another carbon atom.
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