IG_Organic_23

One mole of alkane Y produces 72 dm³ of carbon dioxide when burned in excess oxygen,

measured at room temperature and pressure.

What is Y?

• butane

• ethane

• methane

• propane

The structure of organic compound X is shown.

What is X?

• ethyl ethanoate

• ethyl methanoate

• methyl ethanoate

• methyl methanoate

What is the structural formula of the compound formed in the addition reaction of propene with bromine?

• CH₃CHBrCH₂Br

• CH₂BrCH₂CH₂Br

• CHBr₂CH₂CH₃

• CH₃CBr₂CH₃

Ethanol is produced industrially by fermentation and also by a catalysed addition reaction involving steam.

Which row describes one advantage of each process?

• A

• B

• C

• D

Carboxylic acids react with alcohols when warmed with an acid catalyst.

Which type of substance is formed in this reaction?

• an alkene

• an ester

• a salt

• a polymer

Nylon is formed by condensation polymerisation.

Which structure represents nylon?

• A

• B

• C

• D

Which structure represents the repeat unit of the addition polymer formed from but-1-ene?

• A

• B

• C

• D

The structural formulae of two hydrocarbons are shown.

CH₃CH₂CH₂CH₃ CH₃CH(CH₃)CH₃

Which statement about the hydrocarbons is correct?

• They are both alkenes

• They decolourise aqueous bromine

• They are structural isomers.

• They undergo addition reactions

The structural formula of compound Q is given.

CH₃CH₂CH₂COOCH₂CH₂CH₃

What is compound Q?

• butyl butanoate

• butyl propanoate

• propyl butanoate

• propyl propanoate

The fractional distillation of petroleum is shown.

Which fraction contains hydrocarbons with the longest chain length?

• A

• B

• C

• D