railway RRB JE (CBT I + CBT II) Mock Test 2024 Chemistry General Principles And Process of Isolation of Elements Metals and Its Ores
A reaction showing slag formation is:
1
Cu2S + 2Cu2O → 6Cu + SO2
2
ZnCO3 → ZnO + CO2
3
Fe2O3 + 3C → 2Fe + 3CO
4
FeO + SiO2 → FeSiO3