The correct increasing order of extent of hydrolysis is

Options

A. `C Cl_(4)ltMgCl_(2)ltAlCl_(3)ltSiCl_(4)ltPCl_(5)`
B. `C Cl_(4)ltAlCl_(3)ltMgCl_(2)ltPCl_(5)ltSiCl_(4)`
C. `C Cl_(4)ltSiCl_(4)ltPCl_(5)ltAlCl_(3)ltMgCl_(2)`
D. `C Cl_(4)ltPCl_(5)ltSiCl_(4)ltAlCl_(3)ltMgCl_(2)`

Explanation

To determine the correct increasing order of the extent of hydrolysis for the given compounds, we need to analyze the hydrolysis behavior based on the charge of the metal ions involved and their ability to form stable hydrolysis products.

### Step-by-Step Solution:

1. **Understanding Hydrolysis**: Hydrolysis is a reaction where water molecules interact with a metal ion, leading to the formation of hydroxide ions (OH⁻) and the release of other ligands (like Cl⁻) from the metal complex. The extent of hydrolysis depends on the charge and size of the metal ion.

2. **Identifying the Compounds**: The compounds we are considering are typically metal chlorides. For example, we might have:
- MgCl₂ (magnesium chloride)
- AlCl₃ (aluminum chloride)
- SiCl₄ (silicon tetrachloride)
- PCl₅ (phosphorus pentachloride)

3. **Analyzing Metal Ion Charges**: The charge on the metal ions plays a crucial role in hydrolysis:
- Mg²⁺ has a +2 charge.
- Al³⁺ has a +3 charge.
- Si⁴⁺ has a +4 charge (as in SiCl₄).
- P⁵⁺ has a +5 charge (as in PCl₅).

4. **Comparing Hydrolysis Extents**: Generally, the higher the positive charge on the metal ion, the greater the tendency for hydrolysis due to stronger attraction of water molecules:
- SiCl₄ (Si⁴⁺) will undergo hydrolysis but to a lesser extent than AlCl₃ (Al³⁺).
- AlCl₃ (Al³⁺) will undergo more hydrolysis than MgCl₂ (Mg²⁺).
- PCl₅ (P⁵⁺) will undergo the most hydrolysis due to the highest charge.

5. **Establishing the Order**: Based on the analysis:
- CCl₄ (no hydrolysis, as C has no vacant orbitals)
- MgCl₂ (least hydrolysis)
- AlCl₃ (more hydrolysis)
- SiCl₄ (more hydrolysis than AlCl₃)
- PCl₅ (most hydrolysis)

6. **Final Increasing Order**: Therefore, the correct increasing order of the extent of hydrolysis is:
- CCl₄ < MgCl₂ < AlCl₃ < SiCl₄ < PCl₅