Post Utme Chemistry Past Questions and Answers

Question 881:

Which of the following involves the decomposition of a sugar by enzymic action?

A. Esterification
B. Fermentation
C. Dehydration
D. Polymerization
E. Saponification

Question 882:

When iron rusts, it undergoes ____________

A. Déliquescence
B. Chemical Decomposition
C. Hydrolysis
D. Redox reaction
E. Combustion

Question 883:

Hydrogen is used for the following except ____________

A. Manufacturing of ammonia
B. Synthesis of hydrochloric acid
C. Extinguishing fire
D. Conversion of coal to petrol
E. Manufacture of magarine

Question 884:

Petrol can be obtained from diesel by ____________

A. Distillation
B. Cracking
C. Polymerization
D. Dehydrogenation
E. Catalysis

Question 885:

The following metals are attracted by electrolytic method except ____________

A. Potassium
B. Calcium
C. Sodium
D. Tin
E. Magnesium