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प्रश्न
Silica is added to roasted copper ore during smelting process to remove _______.
(A) ferrous sulphide
(B) ferrous oxide
(C) cuprous sulphide
(D) cuprous oxide
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उत्तर
(B) ferrous oxide
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संबंधित प्रश्न
Write chemical formulae of the following ores :
(a) Calamine
(b) Haematite
(c) Magnetite
(d) Corundum
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(a)Hoope process
(b)Hall process
(c)Baeyer process
(d)Serperck process
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(a) Cryolite
(b) Siderite
(c) China clay
(d) Corundum
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Galvanization
What is 'copper matte' ?
What is the role of the following compound-
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Bauxite has the composition
Metal which is found in free state is:
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Carbonate ore of iron is ____________.
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Which of the following is not an ore of magnesiuim?
Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true?
Pyrolusite is ______.
