Recap of Chapter 13

Which of the following are NOT organic compounds that you have learnt?

• Alkanes

• Alkenes

• Esters

• Ethers

Which of the following are true about alkanes?

• They are saturated hydrocarbons

• They are generally unreaactive

• They have a C=C double bond

• They can react with halogens

What is the products when you heat ethane in the presence of oxygen?

• Ethanol

• Matthew

• Carbon Dioxide

• Vapor

Which of the following pairs are correct?

• C6H14 - hexane

• C4H9OH - butanol

• C3H7COOH - butanoic acid

• C10H20- decane

Which of the following does not react with propene?

• Hydrogen gas, at 300 C with nickel catalyst

• Oxygen gas at room temperature

• Water at room temperature

• Chlorine gas at room temperature

Answer explanation

Propene

- reacts with hydrogen gas to form propane

- reacts with water to form propanol

- reacts with chlorine gas to form 1,2-dichloropropane

Alkenes are not found naturally.

• True

• False

Answer explanation

Alkenes are usually produced by catalytic cracking of hydrocarbons from fractional distillation.

Propane can react with chlorine gas at room temperature in a covered room to form chloropropane.

• True

• False

Answer explanation

Alkanes can only react with halogens under sunlight.

Draw out an isomer of C5H12

What is the correct product from the reaction of 2-butene and water?

• 1-butanol

• 2-butanol

• 2-butaldehyde

• 3-butanol

Which of the following are the methods of producing ethanol?

• Yoghurt

• Fermentation

• Hydrogenation

• Alkylation