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Chemistry Past Questions and Answers

Jamb Chemistry Questions

Question 26:

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

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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

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Question 27:

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

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

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Question 28:

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

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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)

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Question 29:

A compound that will NOT produce oxygen on heating is?

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

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Question 30:

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

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A Nitrogen
B Air
C Argon
D Methane

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