JEE Main 2021 Chemistry question

Chemistry General Principles and Processes of Isolation of Elements (Metallurgy)JEE Main 2021

Not in JEE Main or NEET syllabus

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

(A)converts copper sulphide into copper silicate
(B)converts iron oxide into iron silicateCorrect
(C)reduces copper sulphide into metallic copper
(D)reduces the melting point of the reaction mixture

Answer: (B)

Solution

Question ID VK-022949