Topic #7: Organic Chemistry

Question 1

What are most substances in crude oil?

Answer 1

Alkanes

Question 2

What is the general formula for an alkane?

Answer 2

CnH2n+2

Question 3

List some uses of hydrocarbons.

Answer 3

petrol, diesel oil, kerosene, heavy fuel oil and liquefied petroleum gases

Question 4

What is fractional distillation?

Answer 4

Heating crude oil to boiling points, then letting it condense at certain points

Question 5

What happens as the chains get longer?

Answer 5

They get more viscous, boiling point increases and it becomes less flammable

Question 6

What is cracking?

Answer 6

Turning hydrocarbons into shorter, more useful alkenes

Question 7

What is the general formula for an alkene?

Answer 7

CnH2n

Question 8

How can we test for an alkene?

Answer 8

Add bromine water, if it goes colourless it is an alkene

Question 9

Are alkenes saturated or not?

Answer 9

They are unsaturated

Question 10

Name all the functional groups

Answer 10

Alkene: C=C
Alcohol: -OH
Carboxylic Acid: -COOH

Question 11

What is a monomer?

Answer 11

The repeating unit of a polymer