In a buffer solution containing equal concentration of B⁻ and HB,

⇦

⇨

In a buffer solution containing equal concentration of B⁻ and HB, the Kb for B⁻ is 10⁻¹⁰.The pH of buffer solution is

Options

(a) 10
(b) 7
(c) 6
(d) 4

Correct Answer:

4

Explanation:

We know, pOH = pK(b) + log{[B⁻]/[HB]},

Since, [B⁻] = [HB] (given).

Therefore pOH = pK(b) ⇒ pOH = 10,

Therefore pH = 14 – 10 = 4.

Related Questions:

1. Reason of lanthanoid contraction is
2. Aromatic hydrocarbon shows mostly
3. Chain transfer reagent is
4. Which of the following is not hydrolysed easily
5. Which of the following compounds possesses the C-H bond with the lowest bond dissociation

Topics: Equilibrium (104)
Subject: Chemistry (2512)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends