In a polar solvent, `PCl_(5)` undergoes an ionisation reaction as :
`" "2PCl_(5)hArrPCl_(4)^(+)+PCl_(6)^(-)`
What are the geometrical shapes of the species involved in the equilibrium mixture ?

Explanation

To determine the geometrical shapes of the species involved in the ionization reaction of \( PCl_5 \) in a polar solvent, we will analyze each species: \( PCl_5 \), \( PCl_4^+ \), and \( PCl_6^- \).

### Step 1: Determine the shape of \( PCl_5 \)
1. **Valence Electrons**: Phosphorus (P) has 5 valence electrons, and each Chlorine (Cl) has 7 valence electrons. Therefore, for \( PCl_5 \):
- Total valence electrons = 5 (from P) + 5 × 7 (from 5 Cl) = 40 electrons.

2. **Bonding**: In \( PCl_5 \), phosphorus forms five bonds with chlorine atoms.

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