Homologous Series

Question 1

What type of bonds do alkanes have?

Answer 1

Single bonds

Question 2

Are alkanes saturated or unsaturated?

Answer 2

Saturated

Question 3

What is the general formula for alkanes?

Answer 3

Cn H2n+2

Question 4

4 Uses of alkanes

Answer 4

Petrol
Natural gas
Diesel
Candle Wax

Question 5

Isomers

Answer 5

Same molecular formula different structural formula

Question 6

What is a hydrocarbon?

Answer 6

A compound made from hydrogen and carbon only

Question 7

General formula for alkenes

Answer 7

Cn H2n

Question 8

What type of bond do alkenes have?

Answer 8

Double bonds

Question 9

Are alkenes saturated or unsaturated?

Answer 9

Unsaturated

Question 10

Test for saturation?

Answer 10

Bromine water

Question 11

1 main use of alkenes

Answer 11

Plastics

Question 12

If the bromine water turns colourless it’s…

Answer 12

Unsaturated

Question 13

If the bromine water is unchanged it’s…

Answer 13

Saturated

Question 14

General formula for cycloalkanes

Answer 14

Cn H2n

Question 15

Word equations for a combustion reaction

Answer 15

Hydrocarbon + Oxygen ——> Carbon Dioxide + Water

Question 16

What are the indicators for a combustion reaction experiment

Answer 16

Limewater turns milky due to CO2 being produced
Cobalt Chloride paper turn from blue to pink due to water being produced

Question 17

What’s the cause and result of incomplete combustion?

Answer 17

Cause - insufficient supply of oxygen
Result - carbon monoxide produced

Question 18

What happens during an Addition reaction?

Answer 18

The double bonds break and the molecule is added to the carbon bonds.

Question 19

An example of an addition reaction?

Answer 19

Bromine added to an alkene