Q20 / 90 · JEE Main 2021 (27 Jul Shift 2) · Chemistry

The addition of silica during the extraction of copper from its sulphide ore :-

A
converts copper sulphide into copper silicate
Correct answer
B
converts iron oxide into iron silicate
C
reduces copper sulphide into metallic copper
D
reduces the melting point of the reaction mixture

Solution

Silica is used to remove FeO impurity from the ore of copper

Hence, the correct answer is option: 'B'.

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