The method not used in metallurgy to refine the impure metal is
Options
(a) Mond’s process (b) Van-Arkel process (c) Amalgamation process (d) Liquation
Correct Answer:
Amalgamation process
Explanation:
No explanation available. Be […]
Which of the following sulphides when heated strongly in air gives the corresponding metal
Options
(a) Cu₂S (b) CuS (c) HgS (d) FeS
Correct Answer:
HgS
Explanation:
No explanation available. Be the first […]
Carnallite on electrolysis gives
Options
(a) Ca and Cl₂ (b) Na and CO₂ (c) Al and Cl₂ (d) K and Cl₂
Correct Answer:
K and Cl₂
Explanation:
Carnallite is an ore of potassium: […]
Electromagnetic separation is used in the concentration of
Options
(a) copper pyrites (b) bauxite (c) cassiterite (d) cinnabar
Correct Answer:
cassiterite
Explanation:
Electromagnetic separation is used when either the ore or the impurities […]
Sea weeds are an important source of
Options
(a) fluorine (b) bromine (c) sulphur (d) iodine
Correct Answer:
iodine
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Thomas slag is
Options
(a) CaSiO₃ (b) Ca₃(PO₄)₂ (c) MnSiO₃ (d) CaCO₃
Correct Answer:
Ca₃(PO₄)₂
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Bauxite is concentrated by
Options
(a) magnetic separation (b) roasting (c) froth floatation process (d) chemical method
Correct Answer:
chemical method
Explanation:
No explanation available. Be the first to write the explanation for […]
Copper pyrite, the chief ore of copper, is
Options
(a) CuFeS₂ (b) Cu₂S (c) CuCO₃.Cu(OH)₂ (d) Cu₂O
Correct Answer:
CuFeS₂
Explanation:
No explanation available. Be the first to write the explanation for this […]
The metal used to recover copper from a solution of copper sulphate is
Options
(a) Na (b) Fe (c) Hg (d) Ag
Correct Answer:
Fe
Explanation:
No explanation available. Be the first to […]
Malachite is an ore of
Options
(a) Fe (b) Ag (c) Cr (d) Cu
Correct Answer:
Cu
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
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