Jamb Chemistry Past Questions and Answers

Question 2006:

• JAMB 2018

Diamond is a bad conductor of electricity because its bonding electrons are used in

A. Crystal lattice formation
B. Covalent bond formation
C. Metallic bond formation
D. Coordinate bond formation

Question 2007:

• JAMB 2018

The reaction between an organic acid and an alcohol in the presence of an acid catalyst is known as;

A. Saponification
B. Dehydration
C. Esterification
D. Hydrolysis

Question 2008:

• JAMB 2018

The constituent common to duralumin and alnico is

A. Co
B. Mn
C. Al
D. Mg

Question 2009:

• JAMB 2018

The solubility of the solids that dissolves in a given solvent with the liberation of heat will

A. Increase with an increase in temperature
B. Decrease with an increase in temperature
C. Decrease with a decrease in temperature
D. Not be affected by changes in temperature

Question 2010:

• JAMB 2018

What mass of Cu would be produced by the cathodic reduction of Cu\(^{2+}\) when 1.60A of current passes through a solution of CuSO\(_4\) for 1 hour. (F=96500Cmol\(^{-1}\) , Cu=64)

A. 7.64g
B. 3.82g
C. 1.91g
D. 0.96g