AQA GCSE Chemistry 4.7 Organic chemistry overview quiz quiz

A compound of hydrogen and carbon only

A compound of carbon and oxygen only

A compound of hydrogen and oxygen only

Any compound containing carbon

$C_nH_{2n}$

$C_nH_{2n+2}$

$C_nH_n$

$C_nH_{2n-2}$

It decreases

It stays the same

It increases

It increases then decreases

Renewable, because new crude oil forms quickly underground

Renewable, because plankton still grow and keep replacing it

Neither finite nor renewable, because the supply never runs out

Finite, because it forms far too slowly to be replaced

By boiling point, as the column is hot at the bottom and cool at the top

By chemical reactions that break the different hydrocarbons apart inside the column

By filtering out the solid hydrocarbons through a fine mesh sieve

By adding bromine water to react with each separate fraction

To make crude oil a renewable resource that forms again

To produce shorter, more useful hydrocarbons and alkenes

To increase the boiling point of the long-chain hydrocarbons

To turn all of the alkenes present into saturated alkanes only

Only single carbon to carbon bonds

A carbon to oxygen bond

A carbon to carbon double bond

A ring structure

It stays orange

It turns blue

It forms a precipitate

It turns colourless

$C_nH_{2n}$

$C_nH_{2n+2}$

$C_nH_{2n-2}$

$C_nH_n$

Long polymer chains are broken back down into many separate small monomer units, releasing water vapour

Many alkene monomers join, with double bonds opening, to form one long chain with no other product

Water is removed from between the monomers as they link up into a chain

Saturated alkanes react with oxygen from the air to form a polymer

Bitumen

Petrol

Kerosene

Fuel oil

Carbon monoxide and water

Carbon and hydrogen

Carbon dioxide and hydrogen

Carbon dioxide and water