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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.
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Topics: Hydrogen and Redox Reactions
(174)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If 10 cm³ solution of H₂O₂ ,on decomposition gives 150 cm³ of O₂
- Which of the following 0.10 m aq solution will have the lowest freezing point
- The silver salt of a fatty acid on refluxing with an alkyl halide gives an
- As the alkaline earth metals (except Be) tend to lose their valence electrons
- How many calories are required to heat 40 gram of argon from 40⁰C to 100⁰C
Topics: Hydrogen and Redox Reactions (174)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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