Iron Extraction from sulphide and oxide ores - Jamb Chemistry Past Questions and Answers

Question 1:

• JAMB 2019

Which of the following reactions does not take place in the smelting of iron in a blast furnace?

A. CaCO3(s) CaO(s) + CO2(g)
B. C(s) + O2(g) CO2(g)
C. 3FeCO(s) + 2OCO2(g) FeO4(s)
D. SiO2(s) + CaO(s) CaCO3(s)
E. CO2(g) + C(s) 2CO(g)

Question 2:

• JAMB 1978

Which of the following reactions does not take place in the smelting of iron in a blast furnace?

A. CaCO_3(s) CaO_(s) + CO_2(g)
B. C_(s) + O_2(g) CO_2(g)
C. 3FeCO_(s) + 2OCO_2(g) FeO_4(s)
D. SiO_2(s) + CaO_(s) CaCO_3(s)
E. CO_2(g) + C_(s) 2CO_(g)

Question 3:

• JAMB 2000

Haematite is an ore of

A. Zinc
B. Lead
C. Iron
D. Copper

Question 4:

• JAMB 2008

The most common ores of iron include

A. Haematite, malachite and limonite
B. Chalcolite, calamine and bornite
C. Magnetite, haematite and bornite
D. Magnetite, chalcolite and bornite

Question 5:

• JAMB 2018

Which of the following pairs of substances will react further with oxygen to form a higher oxide?

A. CO${}_2$ and H${}_2$O
B. NO and H${}_2$O
C. CO and CO${}_2$
D. SO${}_2$ and NO