Jamb Chemistry 1988 Past Questions and Answers

Question 1:

• JAMB 1988

Which of the following statements is NOT correct?

A. The average kinetic energy of a gas is directly proportional to its temperature
B. At constant tempearture, the volume of a gas increases as the pressure increases
C. The pressure of a gas is inversely proportional to its volume
D. The temperature of a gas is directly proportional to its volume
E. The collisions of molecules with each other are inelastic

Question 2:

• JAMB 1988

Which of the following statements is NOT correct?

A. The average kinetic energy of a gas is directly proportional to its temperature
B. At constant tempearture, the volume of a gas increases as the pressure increases
C. The pressure of a gas is inversely proportional to its volume
D. The temperature of a gas is directly proportional to its volume
E. The collisions of molecules with each other are inelastic

Question 3:

• JAMB 1988

The ion that may be assumed to have negligible concentration in a sample of water that lathers readily with soap is?

A. Mg⁺
B. K⁺
C. CO₂^2-
D. HCO₃

Question 4:

• JAMB 1988

A substance S is isomorphous with another substance R. When a tiny crystals of S is added into a supersaturated solution of R?

A. S dissolves in the solution
B. Crystals of R are precipitated
C. There is no observable change
D. R and S react to generate heat

Question 5:

• JAMB 1988

Which of the following dilute solutions has the lowest pH value?

A. Calcium trioxocarbonate (IV)
B. Sodium trioxocarbonate (IV)
C. Hydrochloric acid
D. Ethanoic acid