Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 241:

• JAMB 2007

CH₃CH₂Cl + KCN → CH₃CH₂CN + KCl
In the reaction above, the cyanide is

A. Hydrophobic
B. Hydrophilic
C. Nucleophilic
D. Electrophilic

Question 242:

• JAMB 2007

Which of the following compounds is the best possible anti-knock agent for petrol?

A. (CH₃)₂CH - CH(CH₃)CH₂CH₃
B. CH₃CH₂(CH₃)CHCH₂CH₂CH₃
C. CH₃CH₂(CH₃)CHCH₂CH₂CH₃
D. (CH₃)₃C - CH₂CH₂CH₃

Question 243:

• JAMB 2007

The hydrocarbon used in the production of styrene is

A. Ethyne
B. Propyne
C. Ethane
D. Ethene

Question 244:

• JAMB 2007

How many structural isomers of chlorobutane are possible?

A. 4
B. 3
C. 2
D. 1

Question 245:

• JAMB 2007

The conversion of open chain alkanes into cycloalkanes and aromatic compounds is called

A. Cracking
B. Reforming
C. Isomerization
D. Polymerization