Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
trioxonitrate (V)
chloride
trioxocarbonate (IV)
hydroxide
Correct answer is C
No explanation has been provided for this answer.
When calcium oxide is heated with carbon, the oxide will
be converted to carbide
be converted to the trioxocarbonate (IV) salt
decompose to the metal
melt,producingg carbon (IV) oxide
Correct answer is A
No explanation has been provided for this answer.
An element used in the production of matches is
nitrogen
aluminium
copper
sulphur
Correct answer is D
No explanation has been provided for this answer.
purple solution
purple precipitate
colourless precipitate
colourless solution
Correct answer is D
No explanation has been provided for this answer.
If the heat of combustion of hydrogen is -285.8kJ,
What is the heat of formation of water?
+571.6 kJ
-571.6 kJ
-285.8 kJ
+285.8 kJ
Correct answer is C
No explanation has been provided for this answer.