Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 196:

• JAMB 2002

If 0.75 mole of cyclopropane and 0.66 mole of oxygen are mixed in vessel with a total pressure of 0.7 atmosphere, what is the partial pressure of oxygen in the mixture

A. 0.44 atmosphere
B. 0.22 atmosphere
C. 0.55 atmosphere
D. 0.33 atmosphere

Question 197:

• JAMB 2002

The major product of the dehydration of the compound above is

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

Question 198:

• JAMB 2003

Ethene reacts with hydrogen bromide to give

A. CH₂Br₂
B. CH₃CH₂Br
C. C₂H₂Br₂
D. CHBr₂

Question 199:

• JAMB 2003

How many isomers does pentane have?

A. 6
B. 5
C. 4
D. 3

Question 200:

• JAMB 2003

The formula for ethyl butanoate is

A. C₃H₇COOC₂H₅
B. C₂H₅COOC₃H₇
C. C₄H₉COOC₂H₅
D. C₂H₅COOC₄H₉