Equivalent weight of KMnO₄ in basic medium is (mol.wt. of KMnO₄ = 158)

⇦

⇨

Equivalent weight of KMnO₄ in basic medium is (mol.wt. of KMnO₄ = 158)

Options

(a) 31.5
(b) 52.67
(c) 79
(d) 158

Correct Answer:

52.67

Explanation:

MnO₄⁻ + 2H₂O + 3e⁻ → MnO₂ + 4OH⁻
Equivalent weight = molecular weight / 3.
The oxidation number changes from +7 to +4. so , Equivalent weight = 158/3 = 52.67.

Related Questions:

1. Which of the following reaction produces hydrogen
2. A gas has a vapour density 11.2.The volume occupied by 1 g of gas at NTP is
3. Triple point of water is
4. Why do calcium ions make water hard but sodium ions do not
5. The oxidation number of nitrogen in HNO₃ is

Topics: Hydrogen and Redox Reactions (174)
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