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The number of moles of KMnO₄ that will be needed to react with one mole of sulphite ion in acidic solution is
Options
(a) 4/5
(b) 2/5
(c) 1
(d) 3/5
Correct Answer:
2/5
Explanation:
The balanced equation is
2KMnO4 + 5 H2SO3 –> K2SO4 +2 MnSO4 +2 H2SO4 + 3H2O
From the above equation,
Moles of KMnO₄ required to oxidise 5 moles of H2SO₃ are 2
Moles of KMnO₄ required to oxidise 1 moles of H2SO₃ are 2/5
Related Questions: - Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction
- Predict the product of reaction of I₂ with H₂O₂ in basic medium
- A mixture contains O₂ and N₂ in the ratio of 1 : 4 by the weight
- Metallic crystalline solids have
- In a buffer solution containing equal concentration of B⁻ and HB,
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Basic Concepts of Chemistry
(94)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction
- Predict the product of reaction of I₂ with H₂O₂ in basic medium
- A mixture contains O₂ and N₂ in the ratio of 1 : 4 by the weight
- Metallic crystalline solids have
- In a buffer solution containing equal concentration of B⁻ and HB,
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Basic Concepts of Chemistry (94)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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