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 […]
One of the following metals is obtained by leaching its ore with dilute cyanide solution, Identify it.
Options
(a) titanium (b) vanadium (c) silver (d) zinc
Correct Answer:
silver
Explanation:
Cyanide process: ‘Mac […]
The ore horn silver corresponds to
Options
(a) AgCl (b) AgBr (c) Ag₂S (d) 3Ag₂S.Sb₂S₃
Correct Answer:
AgCl
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
The method of zone refining of metals is based on the principle of
Options
(a) greater mobility of the pure metal than that of the impurity (b) higher melting point of the impurity […]
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