Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 276:

• 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 277:

• 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

Question 278:

• JAMB 2010

The haloalkanes used in dry-cleaning industries are

A. Trichloromethane and tetrachloromethane
B. Chloroethene and dichloroethene
C. Trichloroethene and tetrachloroethene
D. Chloroethane and dichloroethene

Question 279:

• JAMB 2010

Two hydrocarbons X and Y were treated with bromine water. X decolorised the solution and Y did not not. Which class of compound does Y belong?

A. Benzene
B. Alkynes
C. Alkenes
D. Alkanes

Question 280:

• JAMB 2011

A suitable solvent for iodine and nephthalene is

A. Carbon (IV) sulphide
B. Ethanol
C. Water
D. Benzene