| ⇦ | 
| ⇨ |
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: - Among the following pairs of ions, the lower oxidation state in aqueous solution
- For making distinction between 2-pentanone and 3-pentanone the reagent to be
- The wrong statement about fullerene is
- In a closed insulated container a liquid is stirred with a paddle to increase
- Molten NaCl results in conduction because of
Topics: P Block Elements in Group 15
(89)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Among the following pairs of ions, the lower oxidation state in aqueous solution
- For making distinction between 2-pentanone and 3-pentanone the reagent to be
- The wrong statement about fullerene is
- In a closed insulated container a liquid is stirred with a paddle to increase
- Molten NaCl results in conduction because of
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