Jamb Chemistry 1992 Past Questions and Answers

Question 11:

• JAMB 1992

¹⁴₇N + X → ¹⁷₈O + ¹₁ H. In the above reaction, X is a?

A. Neutron
B. Helium atom
C. Litgium atom
D. Deuterium atom

Question 12:

• JAMB 1992

The pollutants that are likely to be present in an industrial environment are?

A. H₂S,SO₂ and oxides of nitrogen
B. NH₃, HCI and CO
C. CO₂, NH₃ and H₂S
D. Dust, NO and CI₂

Question 13:

• JAMB 1992

Four elements P,Q,R and S have 1,2,3, and 7 electrons in their outermost shells respectively. The element which is unlikely to be a metal is?

A. P
B. Q
C. R
D. S

Question 14:

• JAMB 1992

Which of the following gases dissolves in water vapour to produce acid rain during rainfall?

A. Oxygen
B. Carbon (II) oxide
C. Nitrogen
D. Sulphur (IV) oxide

Question 15:

• JAMB 1992

Water for town supply is chlorinated to make it free from?

A. Bad odour
B. Bacteria
C. Temporary hardness
D. Permanent hardness