Which of the following halides cannot be hydrolysed ?
- CCl4
- SiCl4
- GeCl4
- SnCl4
The Correct Option is A
Approach Solution - 1
CCl₄ (Carbon tetrachloride) is a non-polar molecule and does not undergo hydrolysis. It is chemically inert to water because carbon does not have a strong enough ability to form bonds with water molecules, and C-Cl bonds are relatively stable.
SiCl₄ (Silicon tetrachloride), GeCl₄ (Germanium tetrachloride), and SnCl₄ (Tin tetrachloride) are metal halides that readily undergo hydrolysis. They react with water to form the corresponding metal hydroxides and hydrochloric acid (HCl):
- \(SiCl₄ + 4H₂O → Si(OH)₄ + 4HCl\)
- \(GeCl₄ + 4H₂O → Ge(OH)₄ + 4HCl\)
- \(SnCl₄ + 4H₂O → Sn(OH)₄ + 4HCl\)
Thus, CCl₄ does not undergo hydrolysis, making (A) the correct answer.
Approach Solution -2
CCl₄ (carbon tetrachloride) does not hydrolyse in water because it is a non-polar molecule and does not react with water. However, SiCl₄, GeCl₄, and SnCl₄ are more reactive and undergo hydrolysis to form silicates, germanates, and stannates, respectively.
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