Organic chemistry

Question 1

What are hydrocarbons

Answer 1

Are compounds thats contain carbon and hydrogen only

Question 2

What is a homologous series

Answer 2

A series of compounds of similar chemical properties showing graduations in physical properties and have a general formula for its members

Question 3

What is the general formula for alkanes

Answer 3

Cnh2n+2

Question 4

Suggest a reason why the volume of benzene in petrol is limited to about 1 percent despite the fact that it improves petrols octane number

Answer 4

Toxic

Question 5

Define free radical

Answer 5

Atom or group of atoms with unpaired electrons. Highly reactive and dont exist for too long.

Question 6

Explain fractionation of crude oil.

Answer 6

A process where a liquid substance is separated into fractions by means of distillation using a fractional column

Question 7

Define primary alcohol

Answer 7

Contains one carbon atom directly attached to the carbon that contains the hydroxyl group