4.5 Organic Chemistry

Question 1

General Formula for Alkanes

Answer 1

C(n) H(2n+2)

Question 2

Uses of Refinery gases and its formula

Answer 2

Fuel for home cooking
CH4

Question 3

Uses of Gasoline and its formula

Answer 3

Fuel for cars
C2H6

Question 4

Uses of Kerosene and its formula

Answer 4

Fuel for Aircrafts
C3H8

Question 5

Uses of Diesel and its formula

Answer 5

Fuel for trains and some cars
C4H10

Question 6

Uses of Fuel Oil and its formula

Answer 6

Fuel for ships
C5H12

Question 7

Uses of Bitumen and its formula

Answer 7

Making roads
C6H14

Question 8

How Fractional Distillation is used to separate crude oil.

Answer 8

1.crude oil (a mixture of hydrocarbons) is evaporated and the vapours enter the column.
2. Vapours rise until they reach their boiling point, when they condense forming the fractions

Question 9

Name of CH4

Answer 9

Methane

Question 10

Name of C2H6

Answer 10

Ethane

Question 11

Name of C3H8

Answer 11

Propane

Question 12

Name of C4H10

Answer 12

Butane

Question 13

Conditions for cracking (Temperature and catalyst)

Answer 13

650 degrees C
Aluminium oxide Al2O3

Question 14

Products of cracking

Answer 14

Long Alkane –> Shorter Alkane + Alkene(s)

Question 15

What is different between alkenes and alkanes to do with bonding

Answer 15

Alkenes always have a double bond between two carbon atoms

Question 16

What is the general formula for alkenes

Answer 16

CnH2n

Question 17

What is the name of a chain of monomers

Answer 17

Polymer

Question 18

Polymer disposal options (4 Options)

Answer 18

Reuse
Recycle
Incinerate
Landfill

Question 19

What is the common name for polymers

Answer 19

Plastics