Organic Chemistry

Question 1

What is a hydrocarbon?

Answer 1

Hydrocarbons consist of the spine of carbon atoms surrounded by hydrogens.
They only contain carbon & hydrogen.

Question 2

How many carbon atoms does Methane have?

Answer 2

1

Question 3

How many carbon atoms does Ethane have?

Answer 3

2

Question 4

How many carbon atoms does Propane have?

Answer 4

3

Question 5

How many carbon atoms does Butane have?

Answer 5

4

Question 6

How many carbon atoms does Hectane have?

Answer 6

7

Question 7

What is the general formula for an Alkane?

Answer 7

C(n)H(2n+2)

Question 8

What’s the general formula for an Alkene?

Answer 8

C(n)H(2n)

Question 9

What type of hydrocarbon contains a carbon carbon double bond?

Answer 9

Alkenes

Question 10

Because they have a double carbon bond, what are alkanes described as?

Answer 10

Saturated

Question 11

How can you test for an alkene?

Answer 11

Use Bromine Water - Orange colour turns colourless

Question 12

What does Cracking do?

Answer 12

Cracking turns longer less useful hydrocarbons into shorter more useful hydrocarbons

Question 13

What does cracking always produce?

Answer 13

An Alkane and an Alkene

Question 14

What are isomers?

Answer 14

Isomers are molecules that have the same molecular formula to one or more other compounds

Question 15

What are the products of burning alkanes?

Answer 15

Carbon dioxide and water