AIPMT MAINS2009Chemistry-Equilibrium
AIPMT MAINS 2009 Chemistry Hydrolysis of Salts MCQ Question
Type: MCQ-numerical-Hard-Class 11
The ionization constant of ammonium hydroxide is 1.77 × 10⁻⁵ at 298 K. Hydrolysis constant of ammonium chloride is:
A
6.50 × 10⁻¹²
B
5.65 × 10⁻¹³
C
5.65 × 10⁻¹²
D
5.65 × 10⁻¹⁰
Correct Answer
Option B
Detailed Explanation
The hydrolysis constant (K_h) can be calculated using the relation K_w = K_b × K_h, where K_w is the ion product of water (1.0 × 10⁻¹⁴ at 298 K). Solving gives K_h = 5.65 × 10⁻¹⁰.
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