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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: - If active mass of a 6% solution of a compound is 2, its molecular weight will be
- Which of the following is wrongly matched
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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
- If active mass of a 6% solution of a compound is 2, its molecular weight will be
- Which of the following is wrongly matched
- According to Dalton’s atomic theory the smallest partical of the matter is called
- Germanium of very high purity is obtained by
- When enthalpy and entropy change for a chemical reaction are – 2.5 x 10³ cals
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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