Post Utme Chemistry Past Questions and Answers

Question 1:

Soaps and detergents have the same basic characteristics except that the carboxyl group of the fatty acid in detergent is replaced by ____________

A. Alcohol
B. Sulphate or a sulphonate group
C. Ester
D. Acids

Question 2:

The relatively high boiling point of alkanols is due to ____________

A. Aliphatic character
B. Ionic bonding
C. Hydrogen bonding
D. Covalent bonding

Question 3:

Two important sources of detergent are ____________

A. Fat/oils and hydrocarbons
B. Coal and cement
C. A pulp and wood
D. Water and gas

Question 4:

What is the process associated with conversion of vegetable oil to soap?

A. Esterification
B. Saponification
C. Hydrolysis
D. Acidification

Question 5:

When ethanal vapour is passed over manganese (II) ethanoate (manganese acetate) catalyst in the presence of air, the product is ____________

A. Ethanoate
B. Ethanol
C. Methanol
D. Ethanoic acid