Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 141:

• JAMB 1994

The IUPAC name of the compound above is

A. 2,2-dimethyl but -1-yne
B. 2,2-dmethyl but -1-ene
C. 3,3-dimethyl but -1-ene
D. 3,3-dimethyl but-1-yne

Question 142:

• JAMB 1994

Use the diagram above to answer this question. The reaction taking place in flask G is known as

A. Hydrolysis
B. Double decomposition
C. Dehydration
D. Pyrolysis

Question 143:

• JAMB 1995

CHCl₃ + Cl₂ → HCl + CCl₄. The reaction above is an example of?

A. An addition reaction
B. A substitution reaction
C. A chlorination reaction
D. A condensation reaction

Question 144:

• JAMB 1995

Which of the following pairs has compounds that are isomers?

A. Propanal and propanone
B. Ethanoic acid and ethylmethanoate
C. Ethanoic acid and ethane-1, 2-diol
D. 2-methylbutane and 2, 2-dimethylbutane

Question 145:

• JAMB 1995

Aromatic and aliphatic hydrocarbons can be distinguished from each other by the?

A. Action of bromine
B. Use of polymerization reaction
C. Action of heat
D. Use of oxidation reaction