Post Utme Chemistry Past Questions and Answers

Question 751:

What is the number of moles of CO which contains 169 of oxygen?

A. 0.5 mole
B. 0.2 mole
C. 0.4 mole
D. 0.25 mole

Question 752:

The single acid which dissolved gold is ____________

A. Nitric acid
B. Hydrochloric acid
C. Aqua regia
D. Selenic

Question 753:

Which of the following is used as laughing gas ____________

A. Nitrogen oxide
B. Nitrogen dioxide
C. Nitrogen trioxide
D. Nitrogen tetra oxide

Question 754:

One of characteristic of transition metals is ____________

A. Ability to conduct electricity
B. Formation of coloured ions
C. Reducing ability
D. Ductility

Question 755:

An alkene can be converted to alkane by ____________

A. Halogenation
B. Hydrogenation
C. Dehydration
D. Hydrolysis