IS_Section Quiz_13.5_e

Stainless steel is an alloy of carbon and iron only.

• True

• False

Some crude oil fractions are the raw materials for making detergents.

• True

• False

Polyethene is used for making ropes.

• True

• False

The disposal of metal and plastic wastes shortens the lifespan of landfills.

• True

• False

Carat gold is suitable for making ornaments.

• True

• False

(E) The properties of hydrocarbons are related to the sizes of their molecules.

• True

• False

Diesel oil is used as a fuel for generating electricity in power plants.

• True

• False

When polymers join together repeatedly, a monomer is formed.

• True

• False

Which of the following statements about crude oil are correct?

(1) It is a thick black liquid.

(2) It has a pungent odour.

(3) A lot of black smoke is produced when it is burned directly.

• A. (1) and (2) only

• B. (1) and (3) only

• C. (2) and (3) only

• D. (1), (2) and (3)

The diagram shows how the crude oil is separated into fractions in an oil refinery.

Which of the following is fraction P?

• A. Diesel oil

• B. Kerosene

• C. Naphtha

• D. Petrol