AIPMT PRELIMS2009Chemistry-Ionic Equilibrium
AIPMT PRELIMS 2009 Chemistry Hydrolysis of Salts MCQ Question
Type: MCQ-numerical-Medium-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
4.65 × 10⁻¹⁰
Correct Answer
Option D
Detailed Explanation
The hydrolysis constant (Kₕ) is calculated using the formula Kₕ = K_w / K_b. Given K_b = 1.77 × 10⁻⁵ and K_w = 1 × 10⁻¹⁴, we find Kₕ = 5.65 × 10⁻¹⁰.
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