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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: - The oxyacid of sulphur that contains a lone pair of electrons on sulphur is
- Number of moles of MnO₄⁻ required to oxidize one mole of ferrous oxalate
- Be²⁺ is isoelectronic with which of the following ions?
- In nucleic acid the sequence is
- The pH value of a 10 M solution of HCl is
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The oxyacid of sulphur that contains a lone pair of electrons on sulphur is
- Number of moles of MnO₄⁻ required to oxidize one mole of ferrous oxalate
- Be²⁺ is isoelectronic with which of the following ions?
- In nucleic acid the sequence is
- The pH value of a 10 M solution of HCl is
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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