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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: - Which of the following elements will have the highest electron affinity
- Which colourless gas evolves, when NH₄ Cl reacts with zinc in a dry cell battery
- The energy of an electron in the 3rd orbit of hydrogen atom is -E
- The electronic configuration of gadolinium (Atomic No.64) is
- Which of the following gives methane on hydrolysis
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following elements will have the highest electron affinity
- Which colourless gas evolves, when NH₄ Cl reacts with zinc in a dry cell battery
- The energy of an electron in the 3rd orbit of hydrogen atom is -E
- The electronic configuration of gadolinium (Atomic No.64) is
- Which of the following gives methane on hydrolysis
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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