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.
magnetite
cryolite
bauxite
cassiterite
Correct answer is C
No explanation has been provided for this answer.
Rusting of iron is an example of
deliquescence
decomposition
displacement reaction
redox reaction
reversible reaction
Correct answer is D
No explanation has been provided for this answer.
Two metallic ions commonly present in hard water are
Ca2+ and Zn2+
Cu2+ and Na+
Mg2+ and Ca2+
Fe2+ and Na+
Zn2+ and Cu2+
Correct answer is C
No explanation has been provided for this answer.
The spontaneity of a chemical reaction is determined by the change in the
concentration of the reactants
temperature of the system
free energy of the system
pressure applied to the system
volume of the reactants
Correct answer is C
No explanation has been provided for this answer.
Calcium chloride solution
Concentrated hydrochloric acid
Ethanol
Ethanedioc acid
Aqueous ammonia
Correct answer is E
No explanation has been provided for this answer.