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 $16g$ of sulphur (IV) oxide? (H=4, C $=12,N=14,O=16,S=32,Cl=35)$

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

Question 4:

$C{H}_3-CH-C{H}_2-C{H}_2-N{H}_2$. 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.