Post Utme Chemistry Past Questions and Answers

Question 416:

Sugar is separated from its impurities by ____________

A. Precipitation
B. Crystallization
C. Distillation
D. Evaporation

Question 417:

The component of an atom that contributes least to the mass is the ____________

A. Proton
B. Nucleus
C. Neutron
D. Electron

Question 418:

An element will readily form an electrovalent compound if its electron configuration is ____________

A. \(2,8,1\)
B. \(2,8,4\)
C. \(2,8,8,12\)
D. \(2,8,5\)

Question 419:

The most suitable metal that can be used as a lightning conductor is ____________

A. Silver
B. Copper
C. Iron
D. Aluminium

Question 420:

The most abundant element on the earth's crust is ____________

A. Nitrogen
B. Hydrogen
C. Oxygen
D. Fluorine