| ⇦ | 
| ⇨ |
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: - At 0K, (i) ¹²C and (ii) a mixture of ¹²C and ¹⁴C will
- Colloidal found effective in medicines is
- When KMnO₄ reacts with KBr in alkaline medium gives bromate ion. Then oxidation
- Allergy is the state in which a person experiences
- Which one of the following has an aromatic character
Topics: D and F Block Elements
(91)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- At 0K, (i) ¹²C and (ii) a mixture of ¹²C and ¹⁴C will
- Colloidal found effective in medicines is
- When KMnO₄ reacts with KBr in alkaline medium gives bromate ion. Then oxidation
- Allergy is the state in which a person experiences
- Which one of the following has an aromatic character
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.
Share this page with your friends
Leave a Reply