#9 | Pyrometallurgy
(Chemistry) > General Principles and Processes of Isolation of Elements
Related Practice Questions :

High purity copper metal is obtained by:

(a) carbon reduction

(b) hydrogen reduction

(c) electrolytic reduction

(d) thermite process

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Aluminothermic process is used for the extraction of metals, whose oxides are:

(a) fusible

(b) not easily reduced  by carbon

(c) not easily reduced by hydrogen

(d) strongly basic

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Purest form of iron is:

(a) cast iron

(b) hard steel

(c) stainless steel

(d) wrought iron

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Thomas slag is:

(a) calcium silicate

(b) calcium  phosphate

(c) tricalcium phosphate and calcium silicate

(d) calcium ammonium phosphate

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Corundum is:

(a) SrO2

(b) Al2O3

(c) CaCl2

(d) Cu2Cl2

 

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