Question

‘X’ on hydrolysis gives two products. One of them is solid. What is ‘X’?

• A. \( P_4O_{10} \)
• B. \( F_2 \)
• C. \( SiCl_4 \)
• D. \( N_3^- \)

Hint:

Covalent chlorides, such as \( SiCl_4 \), hydrolyze in water to form their corresponding oxides and acids. In this case, \( SiCl_4 \) hydrolyzes to produce \( SiO_2 \) (solid) and \( HCl \) (aqueous).

Answer 1

The Correct Option is C

The given question asks about a substance 'X' which, upon hydrolysis, produces two products, one of which is solid. Let's analyze the options one by one:

Option 1: P₄O₁₀

P₄O₁₀ on hydrolysis forms phosphoric acid (H₃PO₄), which is a liquid, not a solid. So, this is not the correct answer.

Option 2: F₂

F₂ (fluorine gas) does not give a solid product on hydrolysis, as it reacts to form hydrofluoric acid (HF), which is in liquid form. Therefore, this is also not the correct answer.

Option 3: SiCl₄

SiCl₄ (silicon tetrachloride) reacts with water (hydrolysis) to form silicon dioxide (SiO₂), which is a solid, and hydrochloric acid (HCl), which is a liquid. Therefore, SiCl₄ is the correct answer.