Jamb Chemistry 2018 Past Questions and Answers

Question 11:

• JAMB 2018

An element used in the production of matches is

A. Nitrogen
B. Aluminium
C. Copper
D. Sulphur

Question 12:

• JAMB 2018

Which of the following gases may not be dried with concentrated sulphuric acid?

A. HCl\(_{(g)}\)
B. NH\(_3\)
C. Cl\(_2\)
D. SO\(_2\)

Question 13:

• JAMB 2018

The Consecutive members of an alkane homologous series differ by

A. CH
B. CH\(_2\)
C. CH\(_3\)
D. C\(_n\)H\(_n\)

Question 14:

• JAMB 2018

A correct electrochemical series can be obtained from Na, Ca, Al, Mg, Zn, Fe, Pb, H, Cu, Hg, Ag, Au by interchanging

A. Al and Mg
B. Zn and Fe
C. Zn and Pb
D. Pb and H

Question 15:

• JAMB 2018

A basic postulate of the kinetic theory of gases is that the molecules of a gas move in straight lines between collisions. This implies that

A. Collisions are perfectly elastic
B. Forces of repulsion exist
C. Forces of repulsion and attraction are in equilibrium
D. Collisions are inelastic