Assertion : Between SiCl₄ and CCl₄, only SiCl₄ reacts with water. Reason : SiCl₄ is ionic and CCl₄ is covalent.

Between 4 SiCl and 4 CCl , only 4 SiCl reacts with water. This is because in the case of silicon due to the presence of vacant d orbitals it can expand its covalency up to six. But in the case of carbon, no vacant d orbital is present. it can only show covalency 4. That is why 4 CCl does not react with water as carbon already has covalency 4 in its compound. The reaction of hydrolysis of 4 SiCl is shown below, Now, 4 SiCl is covalent. This is because silicon is metalloid and chlorine is gas, therefore they form a covalent bond.