Jamb Chemistry 1993 Past Questions and Answers

Question 41:

• JAMB 1993

Which of the curves above represents the behaviour of 1 mole of an ideal gas?

A. L
B. Ll
C. Lll
D. LV

Question 42:

• JAMB 1993

For which salt in the graph above does the solubility increase most rapidly with rise in temperature?

A. CaSO₄
B. KNO₃
C. NaCl
D. KCl

Question 43:

• JAMB 1993

Half-cell reaction. From the data above , it can be deduced that the most powerful reducing agent of the four metals is

A. Cu
B. Fe
C. Ba
D. Zn

Question 44:

• JAMB 1993

In the diagram above, curve X represents the energy profile for a homogeneous gaseous reaction. Which of the following conditions would produce curve Y for the same reaction?

A. Increase in temperature
B. Increase in the concentration of a reactant
C. Addition of a catalyst
D. Increase in pressure

Question 45:

• JAMB 1993

The two functional groups in the above compound are

A. Alcohol and amine
B. Acid and amine
C. Aldehyde and acid
D. Ketone and amine