Chemistry 809

Alcohols do have a _____ smell and are highly volatile.

• sharp

• light

• mild

• strong

Alcohols do support ________ combustion to produce carbon dioxide and water.

• have

• don't have

• complete

• incomplete

The solubility of alcohols...

• increases as the number of carbon atoms increases.

• decreases as the number of carbon atoms decreases.

• increases as the number of carbon atoms remain the same.

• decreases as the number of carbon atoms increases

Fats and oils are ____ conductors of heat and electricity.

• poor

• good

____ fats and oils are colourless, odourless and tasteless.

Saturated fats are mainly composed of ______ bonds, such as palmitic acid.

One fat molecule is composed of...

• three glycerols and one fatty acids

• one glycerol and two fatty acids

• one glycerol and three fatty acids

• two glycerols and one fatty acid

Fats are made of three common elements which are...

Natural rubber is...

• resistant to alkalis and weak acids.

• soluble in some organic solvents such as benzene.

• soft and sticky at a high temperature.

• All of the above.

Natural rubber can be stretched without destroying its ________ structure.