alkanes and their properties

Question 1

Topic 7: Organic Chemistry

Question 2

Alkanes and their Properties

Question 3

Crude oil a fossil fuel formed mosy from dead sea creatures (eg. plantion). It is the source of many fuels and other

Question 4

chemicals such as plastic

Question 5

It is a mixture of hydrocarbons

Question 6

Hydrocarbons are compounds made up of hyduagen & Carbon atons only

Question 7

Most of the hydrocarsons in crude oil are of a group called alkanes

Question 8

AlKanes are made up of a chain of carbon atoms

Answer 8

with as many hydrogen atoms bonded to it as possible.

Question 9

E.g. This is propane

Answer 9

the alkane with 3 carbors

Question 10

No.of C

Question 11

Moleculav

Question 12

H

Question 13

• HI

Question 14

н н

Question 15

in the chain

Question 16

Displayed Formuta

Question 17

Formula

Question 18

Name

Question 19

5 = pentane

Question 20

6 - ректале уелу

Question 21

7= heptane memorise the

Question 22

8= ictane first 1.

Question 23

CHu

Question 24

Methane

Question 25

H

Question 26

Н Н

Question 27

Mnemonic:
2
С2н6
Ethane
H H
3
H - С - С - С -н
н н н
Peanut
Butter

Question 28

СзН8

Question 29

Propane

Question 30

4

Question 31

Н-С- С- С-С-н

Question 32

Н ННН

Question 33

Butane

Question 34

Geneval Formula: CnHan+2

Question 35

Take number of Catoms

Answer 35

x2 and +2 and you get number of Matoms.

Question 36

The properties of alkanes change with the number of carbons in the molecule.

Question 37

boiling point increases

Question 38

→ IMF between molecules get strangen.

Question 39

the viscosity (thickness) increases

Question 40

1) longer molecules get tangled together