Jamb Chemistry 2015 Past Questions and Answers

Question 26:

• JAMB 2015

Which of the following ions requires the largest quantity of electricity for discharge at an electrode?

A. 2.0 mole of Q3⁺
B. 2.5 mole of R2⁺
C. 3.0 mole of T^-
D. 4.0 mole of Y^-

Question 27:

• JAMB 2015

Hydrogen can be displaced from a lot alkaline solution by

A. Fe
B. Cu
C. Cn
D. Sn

Question 28:

• JAMB 2015

Which of the following types of alkanols undergo oxidation to produce alkanoic acids.
I. Primary alkanols
II. Secondary alkanols
III. Tertiary alkanols

A. I, II and III
B. I and II only
C. III only
D. I only

Question 29:

• JAMB 2015

Rare gases are suitable because they

A. Are monoatomic
B. Form ions easily
C. Have duplet or octet electronic configuration in the outermost shells in their atoms
D. Are volatile gases

Question 30:

• JAMB 2015

A major source of oxide of nitrogen is from the burning of

A. Coal
B. Wood
C. Fuel
D. Chlorofluorocarbons