Alkanes And Alkenes

Question 1

Formulas for; methane, ethane and propane

Answer 1

Methane; CH4
Ethane; C2H6
Propane; C3H8

Question 2

Alkanes formula

Answer 2

H

H - C - H

  H

Question 3

What are alkanes?

Answer 3

Double bond

Unsaturated hydrocarbons

Question 4

Define saturated

Answer 4

A molecule with only single bonds between the carbon atoms

Question 5

Define unsaturated

Answer 5

A molecule with at least one double bond between carbon atoms

Question 6

What happens to ethene when bromine water is added?

Answer 6

Ethene + bromine water –> colourless liquid

Colourless) + (Orange

Question 7

What happens to ethane when bromine water is added?

Answer 7

Ethane + bromine water –> orange- coloured liquid

Question 8

What are alkanes?

Answer 8

Saturated hydrocarbons, which are present in crude oil