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

Question

Which one of the following reactions does not occur during extraction of copper? (A) CaO + SiO 2 arrow CaSiO 3 (B) 2 Cu 2 S +3 O 2 arrow 2 Cu 2 O +2 SO 2 (C) FeO + SiO 2 arrow FeSiO 3 (D) 2 FeS +3 O 2 arrow 2 FeO +2 SO 2

Tardigrade Admin · Accepted Answer

CuFeS 2+ O 2 xrightarrow text Partial roasting Cu 2 S + FeO + SO 2+ underset text very small FeS + underset textvery smallCu 2 O Cu 2 S + O 2 arrow Cu 2 O + SO 2 FeS + O 2 arrow FeO + SO 2 FeO + SiO 2 arrow FeSiO 3 No formation of calcium silicate ( CaSiO 3) in extraction of Cu.

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

$C a O + S i O_{2} \to C a S i O_{3}$

$2 C u_{2} S + 3 O_{2} \to 2 C u_{2} O + 2 S O_{2}$

$F e O + S i O_{2} \to F e S i O_{3}$

$2 F e S + 3 O_{2} \to 2 F e O + 2 S O_{2}$

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

CaO+SiO2​→CaSiO3​

2Cu2​S+3O2​→2Cu2​O+2SO2​

FeO+SiO2​→FeSiO3​

2FeS+3O2​→2FeO+2SO2​

CuFeS2​+O2​ Partial roasting ​ Cu2​S+FeO+SO2​+ very small FeS​+very smallCu2​O​ Cu2​S+O2​→Cu2​O+SO2​ FeS+O2​→FeO+SO2​ FeO+SiO2​→FeSiO3​ No formation of calcium silicate (CaSiO3​) in extraction of Cu.

$C a O + S i O_{2} \to C a S i O_{3}$

$2 C u_{2} S + 3 O_{2} \to 2 C u_{2} O + 2 S O_{2}$

$F e O + S i O_{2} \to F e S i O_{3}$

$2 F e S + 3 O_{2} \to 2 F e O + 2 S O_{2}$