Metals and their compounds - Jamb Chemistry Past Questions and Answers

Question 101:

• JAMB 2011

Which of the following is NOT an alkali?

A. NH₃
B. Mg(OH)₂
C. Ca(OH)₂
D. NaOH

Question 102:

• JAMB 2011

The condition required for corrosion to take place is the presence of

A. Water and carbon (IV) oxide
B. Water, carbon (IV) oxide and oxygen
C. Oxygen and carbon (IV) oxide
D. Water and oxygen

Question 103:

• JAMB 2011

Bronze is preferred to copper in the making of medals because it

A. Is stronger
B. Can withstand low temperature
C. Is lighter
D. Has low tensile strength

Question 104:

• JAMB 2012

A metal M displaces zinc from ZnCl, solution, solution
This shows that

A. Electrons flow from zinc to M
B. M is more electropositive than zinc
C. M is more electonegative than zinc
D. Zinc is more electropositive than M

Question 105:

• JAMB 2012

The highest rate of production of carbon (lV) oxide can be achieved using

A. 0.05 mol ^-3HCI and 5g powdered CaCO₃
B. 0.05 mol ^-3HCI and 5g lump CaCO₃
C. 0.10 mol ^-3HCI and 5g powdered CaCO₃
D. 0.025 mol ^-3HCI and 5g powdered CaCO₃