Sec 4 Intro to Organic Chem Recap

Which substance is a hydrocarbon?

• C₄H₁₀

• C₂H₅OH

• CH₃COOH

• C₃H₇NH₂

Which of the following is the general formula for alkanes?

• C_nH_2n

• C_nH_2n+2

• C_nH_2n+1OH

• C_nH_2n+1COOH

What is the name of the substance with chemical formula C₃H₈?

• ethane

• propane

• propene

• butene

What is the chemical formula of propene?

• C₂H₄

• C₂H₆

• C₃H₆

• C₄H₈

Which homologous series has the functional group C=C?

• alkanes

• alkenes

• alcohols

• carboxylic acids

Which statement about fractional distillation of crude oil is correct?

• Each fraction is a pure compound.

• The fractions are separated by melting point.

• The crude oil is vapourised before entering the fractionating column.

• Fractions with higher boiling points rise to the top of the column.

Which crude oil fraction below has the highest boiling point?

• petroleum gas

• naphtha

• lubricating oil

• kerosene

Which crude oil fraction below is used to make road surfaces?

• petroleum gas

• naphtha

• lubricating oil

• bitumen

Which crude oil fraction below is used as feedstock in the petrochemical industry?

• petroleum gas

• naphtha

• lubricating oil

• kerosene

Which crude oil fraction below is used as fuel for aircraft?

• petroleum gas

• petrol

• lubricating oil

• kerosene