Crude oil

Where in the fractionating column will the longest hydrocarbons condense?

• At the top

• In the middle

• At the bottom

Which of the following is not a fraction obtained in fractional distillation of crude oil?

• Refinery gas

• Naphtha

• Coal

• Fuel oil

Different mixtures of hydrocarbons are separated in the fractionating column because the hydrocarbons have different _________.

________ and ________ are the fractions with highest demand.

What does the viscosity of a hydrocarbon tell you?

• How easily it flows

• How easily it burns

• What its boiling point is

• How long the hydrocarbon is

State 2 conditions for cracking.

Write a chemical equation for the cracking of nonane.

State the procedure to end the cracking experiment and name the phenomenon that would occur when the procedure is not properly done.

Which of the following can also be used to detect the presence of a carbon-carbon double bond?

• Acidified dichromate(VI)

• Sodium hydroxide

• Acidified permanganate

• UV light

What is the name of the process which separates crude oil into simpler mixtures of hydrocarbon compounds?

• Cracking

• Distillation

• Filtration

• Fractional distillation