CHEMISTRY || Chemical Industries || Quiz || Set 1
1. Concentration is a:
1) Mixing Technique
2) Separating Technique
3) Boiling Technique
4) Cooling Technique
2. Forth flotation process is used to concentrate the ore on:
1) Density Basis
2) Concentration Basis
3) Wetting Basis
4) Magnetic Basis
3. Matte is a mixture of:
1) FeS and CuS
2) Cu2O and FeO
3) Cu2S and FeS
4) CuS and FeO
4. In the mesmerization process:
1) Roasted ore is heated
2) Molten matte is removed
3) Molten matte is heated
4) Molten matte is added
5. Concentration of the copper ore is carried out by:
1) Calculations
2) Roasting
3) Forth Flotation
4) Distillation
6. When CO2 is passed through the ammonical brine the only salt that precipitates is:
1) NaHCO3
2) NH4HCO3
3) Na2CO3
4) (NH4)2CO3
7. In Solvay's process slaked lime is used to:
1) Prepare CO2
2) Prepare quick lime
3) Recover ammonia
4) From Na2CO3
8. When NaHCO3 is heated it forms:
1) CO2
2) Ca(OH)2
3) CaCO3
4) CaO