Jamb Chemistry Past Questions and Answers

Question 1901:

• JAMB 2016

MnO\(_4\)(aq) + Y + 5Fe\(^{2+}\) (aq) \(\mapsto\) Mn\(^{2+}\) (aq) + 5Fe\(^{3+}\) (aq) + 4H\(_2\)O (l).
In the equation above, Y is

A. 10H⁺_(aq)
B. 5H⁺_(aq)
C. 8H⁺_(aq)
D. 4H⁺_(aq)

Question 1902:

• JAMB 2016

The compound above exhibits

A. Geometric isomerism
B. Positional isomerism
C. Structural isomerism
D. Optical isomerism

Question 1903:

• JAMB 2016

n monosaccharide \( \underset{Q}{\stackrel{P}{\rightleftharpoons}} \) polysaccharide -n water.
In the process above, P and Q respectively represent

A. Condensation and hydrolysis
B. Fermentation and condensation
C. Polymerization and hydrolysis
D. Polymerization and condensation

Question 1904:

• JAMB 2016

The functional groups present in the compound above are

A. Alkene and halo-group
B. Hydroxyl and chloro-group
C. Alkene and chloro-group
D. Hydroxyl and halo-group

Question 1905:

• JAMB 2016

In the diagram above, X is the

A. Enthalphy
B. Activated complex
C. Activation energy
D. Enthalphy change