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Which one of the following reactions does not occur during extraction of copper? [JEE Main 2023, 25 Jan (Shift 1)]

Q1

Which one of the following reactions does not occur during extraction of copper?

[JEE Main 2023, 25 Jan (Shift 1)]

a

\(2 Cu _2 S +3 O _2 \rightarrow 2 Cu _2 O +2 SO _2\)

b

\(2 FeS +3 O _2 \rightarrow 2 FeO +2 SO _2\)

c

\(CaO + SiO _2 \rightarrow CaSiO _3\)

d

\(FeO + SiO _2 \rightarrow FeSiO _3\)

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