Waec Chemistry 1998 Past Questions and Answers

Question 16:

• WAEC 1998

Aluminium is extracted from

A. Magnetite
B. Cryolite
C. Bauxite
D. Cassiterite

Question 17:

• WAEC 1998

Metals are said to be malleable because they

A. Are good conductors heat
B. Are good conductors of electricity
C. Can be beaten into sheets
D. Can be alloyed
E. Can be polished

Question 18:

• WAEC 1998

A device used in the laboratory for intermittent production of gases without heating is

A. Leibing condenser
B. Aspirator
C. Delivery tube
D. Inverted funnel
E. Kipp's apparatus

Question 19:

• WAEC 1998

Which of the following can undergo both addition reactions and substitution reactions?

A. Benzene
B. Pentane
C. Propene
D. Hexane
E. Ethene

Question 20:

• WAEC 1998

The liquid product of the destructive distillation of coal is

A. Kerosene
B. Ethanol
C. Ammoniacal liquor
D. Paraffin oil
E. Aqueous ammonia