Organic Chemistry N4

Question 1

What does organic chemistry involve?

Answer 1

The study of carbon based molecules

Question 2

Define the homologous series?

Answer 2

Same general formula, similar chemical properties

Question 3

Hydrocarbons contain…?

Answer 3

Single carbon to carbon bonds (C-C)

Question 4

Whats the smallest alkane?

Answer 4

Methane (CH4)

Question 5

What does molecular formula of methane look like?

Answer 5

CH4

Question 6

What does molecular formula of ethane look like?

Answer 6

C2H6

Question 7

What does molecular formula of propane look like?

Answer 7

C3H8

Question 8

What does molecular formula of butane look like?

Answer 8

C4H10

Question 9

What does molecular formula of pentane look like?

Answer 9

C5H12

Question 10

What does molecular formula of heptane look like?

Answer 10

C7H16

Question 11

What does molecular formula of octane look like?

Answer 11

C8H18

Question 12

What does the shortened structured formula of methane look like?

Answer 12

CH4

Question 13

What does the shortened structured formula of ethane look like?

Answer 13

CH3CH3

Question 14

What does the shortened structured formula of propane look like?

Answer 14

CH3CH2CH3

Question 15

What does the shortened structured formula of butane look like?

Answer 15

CH3CH2CH2CH3

Question 16

What does the shortened structured formula of pentane look like?

Answer 16

CH3CH2CH2CH2CH3

Question 17

What does the shortened structured formula of hexane look like?

Answer 17

CH3CH2CH2CH2CH2CH3

Question 18

What does the shortened structured formula of heptane look like?

Answer 18

CH3CH2CH2CH2CH2CH2CH3

Question 19

What does the shortened structured formula for octane look like?

Answer 19

CH3CH2CH2CH2CH2CH2CH2CH3

Question 20

What is the general formula for the alkanes

Answer 20

CnH2n+2

Question 21

What is the molecular formula for ethene?

Answer 21

C2H4

Question 22

What is the molecular formula for propene?

Answer 22

C3H6

Question 23

What is the molecular formula for butene?

Answer 23

C4H8

Question 24

What is the molecular formula for pentene?

Answer 24

C5H10

Question 25

What is the molecular formula for hexene?

Answer 25

C6H12

Question 26

What is the molecular formula for heptene

Answer 26

C7H14

Question 27

What is the molecular formula for octene?

Answer 27

C8H16

Question 28

What is the general formula for the alkenes?

Answer 28

CnH2n

Question 29

What is an isomer?

Answer 29

Molecules with the same molecular formula but a different structure

Question 30

Explain the term alkene

Answer 30

Hydrocarbons with double carbon bonds (C=C)

Question 31

Which is more reactive alkanes or alkenes, why is this?

Answer 31

Alkenes, this is caused by the double carbon bond

Question 32

What allows molecules to be added on?

Answer 32

C=C

Question 33

Alkanes are said to saturated, why?

Answer 33

Because of the single bond between carbons

Question 34

Alkenes are said to be unsaturated, why?

Answer 34

Because of the double carbon bonds

Question 35

How can you test for saturation?

Answer 35

Add bromine water to an alkane/alkene and shake, if an alkene (unsaturated) it will turn colourless and if an alkane (saturated) it will stay colourful

Question 36

What does hydrogenation mean?

Answer 36

Adding hydrogens

Question 37

What does halogenation mean?

Answer 37

Adding halogens

Question 38

What does hydration mean?

Answer 38

Adding water

Question 39

“Supply does not always meet demand” True or false?

Answer 39

True

Question 40

What does “cracking” mean?

Answer 40

Taking larger molecules and breaking them into smaller ,more useful molecules

Question 41

What does the molecular formula for hexane look like?

Answer 41

C6H14