Jamb Chemistry 2010 Past Questions and Answers

Question 41:

• JAMB 2010

Benzene reacts with hydrogen in the presence of nickel catalyst at 180^oC to give

A. Xylene
B. Toluene
C. Cyclopentane
D. Cyclohexane

Question 42:

• JAMB 2010

Which of the following is used to hasten the ripening of fruit?

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

Question 43:

• JAMB 2010

The final products of the reaction between methane and chlorine in the presence of ultraviolet light are hydrogen chloride and

A. Tricloromethane
B. Dichloromethane
C. Tetrachloromethane
D. Chloromethane

Question 44:

• JAMB 2010

The correct order of increasing boiling points of the following compounds C₃H₇OH, C₇H₁₆ and C₄H₁₀ is

A. C₃H₇OH → C₄H₁₀ → C₇H₁₀
B. C₄H₁₀ → C₇H₁₆ → C₃H₇OH
C. C₇H₁₆ → C₃H₇OH → C₄H₁₀
D. C₄H₁₀ → C₃H₇OH → C₇H₁₆

Question 45:

• JAMB 2010

One of the major uses of alkane is

A. As domestic and industrial fuel
B. In the hydrogenation of oils
C. In the textile industries
D. In the production of plastics