How many moles of iodine are liberated when 1 mole of potassium dichromate

How Many Moles Of Iodine Are Liberated When 1 Mole Chemistry Question

How many moles of iodine are liberated when 1 mole of potassium dichromate reacts with potassium iodide

Options

(a) 1
(b) 2
(c) 3
(d) 4

Correct Answer:

3

Explanation:

Iodine is liberated from potassium iodide.
K₂Cr₂O₇ + 4H₂SO₄ → K₂ SO₄+ Cr₂(SO₄)₃ + 4H₂O+ 3[O]
[2KI + H₂SO₄+[O] → K₂ SO₄ + I₂ +H₂O] ⨯ 3 /
[ K₂Cr₂O₇ + 6KI + 7H₂ SO₄ → 4K₂ SO₄+ Cr₂(SO₄)₃ + 7H₂O + 3I₂].

Related Questions:

  1. The basicity of aniline is weaker in comparison to that of mathyl amine due to
  2. Which one is most reactive towards SN1 reaction
  3. An oxygen containing organic compound upon oxidation forms a carboxylic acid
  4. A certain current liberated 0.504 g of hydrogen in 2 hours. How many grams
  5. Living in the atmosphere of CO is dangerous, because it

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.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*