| ⇦ | 
| ⇨ |
Which of the following is used to prepare Cl₂ gas at room temperature from concentrated HCl
Options
(a) MnO₂
(b) H₂S
(c) KMnO₄
(d) Cr₂O₃
Correct Answer:
KMnO₄
Explanation:
KMnO₄ oxidised halogen acids to halogen. 2KMnO₄ + 3H₂SO₄ → K₂SO₄ + 2MnSO₄ + 3H₂O + 5O, [2HCl + O → H₂O + Cl₂] * 5. 2KMnO₄ + 3H₂SO₄ + 10HCl → K₂SO₄ + 2MnSO₄ + 8H₂O + 5Cl₂.
Therefore KMnO₄ is used to prepare Cl₂ from concentrated HCl.
Related Questions: - An organic compound A(C₄H₉Cl) on reaction with Na/diethylether gives a hydrocarbon
- Aqueous solution of Cu (II) gives an intense blue solution with ammonia,which is due
- If N and S both are present in an organic compound then during Lassaigne’s test,
- In graphite C atom is in …state
- In the electrolytic refining of zinc
Topics: P Block Elements in Group 15
(89)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An organic compound A(C₄H₉Cl) on reaction with Na/diethylether gives a hydrocarbon
- Aqueous solution of Cu (II) gives an intense blue solution with ammonia,which is due
- If N and S both are present in an organic compound then during Lassaigne’s test,
- In graphite C atom is in …state
- In the electrolytic refining of zinc
Topics: P Block Elements in Group 15 (89)
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