Jamb Chemistry 2013 Past Questions and Answers

Question 26:

• JAMB 2013

Which of the gases is employed as an anaesthesia?

A. N ₂O
B. NO₂
C. NH₃
D. NO

Question 27:

• JAMB 2013

Sulphur (IV)oxide is a strong reducing agent in the presence of water due to the formation of

A. Hydroxide ion
B. Sulpgur (Vl)oxide
C. Hydrogen sulhide
D. Trioxosulphate (IV) salt

Question 28:

• JAMB 2013

A metal that forms soluble trioxosulphate (IV) ion is

A. Barium
B. Potassium
C. Manganese
D. Aluminium

Question 29:

• JAMB 2013

Copper is displaced from the solution of its salts by most metals because it

A. Is a transition element
B. Is at the bottom of the activity series
C. Is very reactive
D. Has completely filled 3d-orbitals

Question 30:

• JAMB 2013

The coloured nature of transition metal ions are associated with their partially filled

A. F- orbital
B. S- orbital
C. P-orbital
D. D-orbital