Jamb Chemistry 1997 Past Questions and Answers

Question 26:

• JAMB 1997

One method of driving the position of equilibrium of an endothermic reaction forward is to?

A. Increase temperature at constant pressure
B. Dcrease pressure at constant temperature
C. Cool down the apparatus with water
D. Decreases temperature at constant pressure

Question 27:

• JAMB 1997

Oxidation of concentrated hydrochloric acid with manganese (IV) oxide liberates a gas used in the?

A. Manufacture of tooth pastes
B. Treatment of simple golitre
C. Vulcanization of rubber
D. Sterilization of water

Question 28:

• JAMB 1997

mE + nF → pG + qH. In the equation above, the equilibrium constant is given by?

A. (E)^m(F)ⁿ/ (G)ⁿ(H)^q
B. (E)(F) / (G)(H)
C. (G)^p(H)^q / (E)^m(F)ⁿ
D. (G)(H) / (E)(F)

Question 29:

• JAMB 1997

A compound that will NOT produce oxygen on heating is?

A. Potasium dioxonitrate (III)
B. Lead (IV) oxide
C. Potassium trioxochlorate (V)
D. Potassium trioxonitrate (V)

Question 30:

• JAMB 1997

Coal gas is made up of carbon (II) oxide, hydrogen and?

A. Nitrogen
B. Air
C. Argon
D. Methane