Reaction of solid KMnO₄ ith conc.H₂SO₄ produces manganese heptoxide (Mn₂O₇) in

Reaction Of Solid Kmno Ith Conchso Produces Manganese Heptoxide Mno Chemistry Question

Reaction of solid KMnO₄ with conc.H₂SO₄ produces manganese heptoxide (Mn₂O₇) in

Options

(a) solution state
(b) solid state
(c) fine powder
(d) none of these

Correct Answer:

solution state

Explanation:

KMnO₄ on treatment with concentrated H₂SO₄ forms manganese heptoxide via permanganyl sulphate which decomposes explosively on heating. 2KMnO₄ + 3H₂SO₄ → 2KHSO₄ + (MnO₃)₂SO₄ + 2H₂O. (MnO₃)₂SO₄ + H₂O → Mn₂O₇(Red-brown liquid) + H₂SO₄. Mn₂O₇ → 2MnO₂ + 3/2 O₂. Therefore Mn₂O₇ so formed is a red-brown liquid.

Related Questions:

  1. Hardest compound of boron is
  2. Reaction between an acyl halide and the sodium salt of a fatty acid results in
  3. The IUPAC name of tert-butyl alcohol is
  4. Which of the following salts will give highest pH in water
  5. Which of the following technique is most suitable for purification of cyclo

Topics: D and F Block Elements (91)
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Your email address will not be published.


*