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In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with
Options
(a) carbon monoxide
(b) copper (I) sulphide
(c) sulphure dioxide
(d) iron (II) sulphide
Correct Answer:
copper (I) sulphide
Explanation:
2Cu₂S (s) +3O₂ (g) →2Cu₂O (s) +2SO₂(g)
The unchanged Cu₂S, mixed with Cu₂O and heated strongly in absence of air
2Cu₂S + 2Cu₂O →6Cu +SO₂.
Related Questions: - When a common salt is added to the saponified product of oil, the soap is thrown
- In preparation of alkene from alcohol using Al₂O₃ which is an effective factor
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Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When a common salt is added to the saponified product of oil, the soap is thrown
- In preparation of alkene from alcohol using Al₂O₃ which is an effective factor
- Number of σ and π- bonds in acetylene is
- For vaporization of water at 1 atmospheric pressure, the values of ΔH and ΔS
- H₂S acts only as a reducing agent while SO₂, can act both as a reducing
Topics: Surface Chemistry and Isolation of Elements (88)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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