Post Utme Ladoke Akintola University of Technology Chemistry Past Questions and Answers

Question 1:

Oxidation of concentration hydrochloric acid with manganese (IV) oxide liberates a gas used in the _____________

A. Manufacture of toothpaste
B. Treatment of goiter
C. Vulcanization of rubber
D. Sterilization water

Question 2:

The relative strengths of weak acids can be seen by a comparison of their _____________

A. \(pH\) value
B. Dissociation constants
C. Hydrogen ion concentrations
D. Molarities

Question 3:

Which of the following gases has the same volume under the same condition as \(16 g\) of sulphur (IV) oxide? (H=4, C \(=12, N =14, O =16, S =32, Cl =35)\)

A. \(8 g\) of hydrogen
B. \(5.5 g\) of carbon( \(( VI )\) oxide
C. \(11.0 g\) of carbon (IV) oxide
D. \(5 g\) of nitrogen \(OH\)

Question 4:

\(CH _{3}- CH - CH _{2}- CH _{2}- NH _{2}\). The two functional groups in the above compound are _____________

A. Amino and carbonyl
B. Carbonyl and hydroxyl
C. Hydroxyl and carboxyl
D. Hydroxyl and amine

Question 5:

\(F ^{-1}\) would have a larger radius than fluorine atom, because of _____________

A. Addition of an extra electron in \(F ^{-1}\)
B. The ion was obtained after fluorine lost valence electron
C. The effective nuclear charge of \(F ^{-1}\) is greater than that of \(F ^{-1}\)
D. \(F\) is an ion while \(F\) is not.