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 weight of silver (at.wt. = 108) displaced by a quantity of electricity
  2. Which one of the following elements constitutes a major impurity in pig iron
  3. Standard enthalpy and standard entropy changes for the oxidation of ammonia
  4. Which of the following is not permissible arrangement of electrons in an atom?
  5. Surface tension vanishes at

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

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.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*