AIPMT PRELIMS2010Chemistry-Equilibrium
AIPMT PRELIMS 2010 Chemistry Buffer Solutions MCQ Question
Type: MCQ-numerical-Medium-Class 11
In a buffer solution containing equal concentration of B⁻ and HB, the Kb for B⁻ is 10⁻¹⁰. The pH of buffer solution is
A
4
B
10
C
7
D
6
Correct Answer
Option A
Detailed Explanation
pOH = pKb + log([B⁻]/[HB]) = 10. Therefore, pH = 14 - 10 = 4.
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