Air - Jamb Chemistry Past Questions and Answers

Question 36:

• JAMB 2008

Use the diagram to answer this question. The gas that can be used to demonstrate the experiment is

A. Hydrogen chloride
B. Hydrogen sulphide
C. Nitrogen(ll) oxide
D. Dinitrogen (l) oxide

Question 37:

• JAMB 2009

In the diagram above, which of the curves represents the evolution of oxygen with time in the equation 2KClO_3(s) → 2KCl_(s) + 3O_2(g)?

A. X
B. Y
C. Z
D. R

Question 38:

• JAMB 2009

The gasification of coke is used for the manufacturing of

A. Producer gas
B. Natural gas
C. Synthetic gas
D. Industrial gas

Question 39:

• JAMB 2009

The gas that is most useful in protecting humans against solar radiation is

A. Chlorine
B. Ozone
C. Carbon (IV) oxide
D. Hydrogen sulphide

Question 40:

• JAMB 2011

The bleaching action of chlorine gas is effective due to the presence of

A. Hydrogen chloride
B. Water
C. Air
D. Oxygen