Jamb Chemistry 1990 Past Questions and Answers

Question 46:

• JAMB 1990

What is the IUPAC name for the hydrocarbon

A. 2-ethyl-4-methylpent-2-ene
B. 3,5-dimethylhex-3-ene
C. 2,4-dimethylhex 3-ene
D. 2-methyl-4-ethylpent-3-ene

Question 47:

• JAMB 1990

Use the above graph above to answer this question . CH₃-C = CH \(\frac{Na}{liq NH_3}\)> P, Compound P, in the above reaction, is

A. A
B. B
C. C
D. D

Question 48:

• JAMB 1990

The above reaction is an example of

A. A displacement reaction
B. A neutralization reaction
C. An elimination reaction
D. Saponification

Question 49:

• JAMB 1990

Select the right answer from the structure above.Which of the following compounds represents the polymerization product of ethyne?

A. A
B. B
C. C
D. D