Ebonyi State University Chemistry Post Utme Past Questions and Answers

Question 16 :

Which of the following gases can be collected by the method of downward delivery?

A. Chlorine
B. Oxygen
C. Ammonia
D. Hydrogen

Question 17 :

Sulphur (IV)oxide bleaches by ____________

A. Reduction
B. Oxidation
C. Hydration
D. Absorption

Question 18 :

Aluminium hydroxide is used in the dyeing industry as a ____________

A. Salt
B. Dye
C. Mordant
D. Dispersant

Question 19 :

Alloys are best prepared by ____________

A. Electroplating
B. Arc-welding
C. Reducing a mixture of this metallic oxides
D. Cooling a molten mixture of the metals

Question 20 :

In the electrolysis of brine, the anode is ____________

A. Platinum
B. Copper
C. Zinc
D. Carbon