Group the following as linear and non-linear molecules :
`H_(2)O,HOCl,BeCl_(2),Cl_(2)O`

Explanation

To classify the given molecules (H₂O, HOCl, BeCl₂, and Cl₂O) as linear or non-linear, we will analyze their structures and hybridizations step by step.

### Step 1: Analyze H₂O (Water)
1. **Identify the central atom**: The central atom in H₂O is oxygen (O).
2. **Count the valence electrons**: Oxygen has 6 valence electrons. Each hydrogen (H) contributes 1 electron, giving a total of 2 from two hydrogens.
- Total = 6 (O) + 2 (H) = 8 valence electrons.
3. **Determine hybridization**: Use the formula:
\[
...