The number of moles of KMnO₄ that will be needed to react with one mole of

The Number Of Moles Of Kmno That Will Be Needed Chemistry Question

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:

  1. The following composition is known as “Bordeaux mixture”.
  2. What is the molar ratio of mixture of gases given the ratio of gases
  3. Among the following, identify the compound which cannot act as both oxidising
  4. Which of the following is non-permissible?
  5. Hofmann bromamide reaction is used to prepare

Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Basic Concepts of Chemistry (94)
Subject: Chemistry (2512)

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