Jamb Chemistry Past Questions and Answers

Question 206:

• JAMB 1980

Which of the following classes of organic compounds undergoes rapid oxidation with bromine water?

A. Alcohols
B. Alkenes
C. Carboxylic acids
D. Esters
E. Alkanes

Question 207:

• JAMB 1981

An element X has 127 neutrons and 82 electrons.
Its atomic number is?

A. 209
B. 105
C. 45
D. 82

Question 208:

• JAMB 1981

An element X has 127 neutrons and 82 electrons.
Its atomic number is?

A. 209
B. 105
C. 45
D. 82

Question 209:

• JAMB 1981

When a bottle of Coca-Cola is opened, bubbles of evolve. The gas is?

A. Hydrogen
B. Carbon monoxide
C. Carbon dioxide
D. Sulphur oxide
E. Chlorine

Question 210:

• JAMB 1981

When glowing splint is inserted into the mouth of a jar containing a gas, the splint is extinguished. The gas gives a white precipitate when passing into barium hydroxide. The gas is?

A. Methane
B. Hydrogen chloride
C. Hydrogen
D. Nitrogen
E. Carbondioxide