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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: - Oxidation state of sulphur in S₈, H₂S and S₂F₂ is
- The process which is catalysed by one of the products is called
- Identify the feasible reaction among the following
- In the chemical reaction
2SO₂ + O₂ ⇌ 2SO₃,
increasing the total pressure leads to
- Which of the following will not act as a buffer?
Topics: P Block Elements in Group 15
(89)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Oxidation state of sulphur in S₈, H₂S and S₂F₂ is
- The process which is catalysed by one of the products is called
- Identify the feasible reaction among the following
- In the chemical reaction 2SO₂ + O₂ ⇌ 2SO₃, increasing the total pressure leads to
- Which of the following will not act as a buffer?
Topics: P Block Elements in Group 15 (89)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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