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.
Lead and tin are the components of
steel
bronze
brass
dentist amalgam
soft solder
Correct answer is E
No explanation has been provided for this answer.
Which of the following is an ore of aluminium?
Haematite
Magnetite
Siderite
Bauxite
Cassiterite
Correct answer is D
No explanation has been provided for this answer.
Which of the following metals is not extracted by electrolysis ?
lron
Sodium
Calcium
Magnesium
Aluminium
Correct answer is A
No explanation has been provided for this answer.
The following oxides react with both acids and bases to form salts except
zinc oxide
lead (ll) oxide
aluminium oxide
tin (IV) oxide
carbon (Iv) oxide
Correct answer is E
No explanation has been provided for this answer.
Which of the following is used as water softener?
Na2CO3.10H2O
CuSO4. 5H2O
MgSO4. 7H2O
CaCI2.2H2O
Na2SO4. 10H2O
Correct answer is A
No explanation has been provided for this answer.