Which one of the following tetrachlorides does not undergo
hydrolysis ?

Options

A. `SnCl_4`
B. `GeCl_4`
C. `SiCl_4`
D. `C Cl_4`

Explanation

To determine which tetrachloride does not undergo hydrolysis, we need to analyze the behavior of the tetrachlorides of Group 14 elements when they react with water.

### Step-by-Step Solution:

1. **Identify the Tetrachlorides**: The tetrachlorides we are considering are CCl₄ (carbon tetrachloride), SiCl₄ (silicon tetrachloride), GeCl₄ (germanium tetrachloride), and SnCl₄ (tin tetrachloride).

2. **Understanding Hydrolysis**: Hydrolysis is a chemical reaction involving water, where a compound reacts with water to form new products. In the case of tetrachlorides, hydrolysis typically results in the formation of oxyacids and hydrochloric acid (HCl).

3. **Analyze CCl₄**: Carbon (C) in CCl₄ does not have vacant d-orbitals. This is significant because the absence of vacant d-orbitals means that carbon cannot expand its coordination number beyond 4. Therefore, CCl₄ does not react with water and does not undergo hydrolysis.

4. **Analyze SiCl₄**: Silicon (Si) in SiCl₄ has vacant d-orbitals, allowing it to expand its coordination number. When SiCl₄ reacts with water, it hydrolyzes to form silicic acid (H₄SiO₄) and hydrochloric acid (HCl).

5. **Analyze GeCl₄ and SnCl₄**: Similar to SiCl₄, both germanium (Ge) and tin (Sn) have vacant d-orbitals, allowing GeCl₄ and SnCl₄ to also undergo hydrolysis when they react with water.

6. **Conclusion**: Among the tetrachlorides discussed, only CCl₄ does not undergo hydrolysis due to the absence of vacant d-orbitals and the inability to expand its coordination number.

### Final Answer:
CCl₄ (carbon tetrachloride) does not undergo hydrolysis.

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