Marshall's acid A + B
A B + C
If P and Q represent maximum number of atoms that can lie in a plane of compound A and C respectively. Then, find out value of (P - Q).

Question

Marshall's acid $\xrightarrow{ ext{H}_2 ext{O}}$ A + B
A $\xrightarrow{ ext{H}_2 ext{O}}$ B + C
If P and Q represent maximum number of atoms that can lie in a plane of compound A and C respectively. Then, find out value of (P - Q).

Prashant Kotian · Accepted Answer

Correct answer: 2 / H2S2O8 + H2O $\RIGHTARROW$ H2SO5 (A) + H2SO4 (B)
H2SO5 + H2O $\RIGHTARROW$ H2O2 (C) + H2SO4 (B)
P = 5, Q = 3. P - Q = 5 - 3 = 2. Step 1: Hydrolysis of group 14 tetrahalides requires coordination of water molecules to the central atom via vacant d-orbitals. Step 2: Carbon (C) belongs to the second period and lacks vacant d-orbitals in its valence shell, preventing it from accepting lone pairs from water molecules to initiate hydrolysis. Step 3: Consequently, CCl4 does not undergo hydrolysis at room temperature, making option (c) the correct answer.

💡 Solution & Explanation

Practice 22,000+ questions like this