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Chemistry Past Questions and Answers

Jamb Chemistry Questions

Question 1:

Trioxonitrate (V) acid is not used for preparing hydrogen gas from metals because it

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A Is strongly oxidizing
B Is volatile
C Renders the metal passive
D Forms a layer of oxide on the metal

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Question 2:

Trioxonitrate (V) acid is not used for preparing hydrogen gas from metals because it

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A Is strongly oxidizing
B Is volatile
C Renders the metal passive
D Forms a layer of oxide on the metal

View Answer & Explanation

Question 3:

An element used in the production of matches is

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A Nitrogen
B Aluminium
C Copper
D Sulphur

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Question 4:

When calcium oxide is heated with carbon, the oxide will

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A Be converted to carbide
B Be converted to the trioxocarbonate (IV) salt
C Decompose to the metal
D Melt,producingg carbon (IV) oxide

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Question 5:

A solution which on treatment with hydrochloric acid produces a colourless, odourless gas which turns lime water milky is most likely to be a

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A Trioxonitrate (V)
B Chloride
C Trioxocarbonate (IV)
D Hydroxide

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