| ⇦ | 
| ⇨ |
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: - A zinc rod is place in 0.095 M solution of zinc sulphate at 298 K, the potential
- In the reaction with HCl, an alkene reacts in accordance with the Markovnikov’s
- Colloidal found effective in medicines is
- Method by which aniline cannot be prepared is
- Coordination number of Zn in ZnS (zinc blende) is
Topics: P Block Elements in Group 15
(89)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A zinc rod is place in 0.095 M solution of zinc sulphate at 298 K, the potential
- In the reaction with HCl, an alkene reacts in accordance with the Markovnikov’s
- Colloidal found effective in medicines is
- Method by which aniline cannot be prepared is
- Coordination number of Zn in ZnS (zinc blende) is
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