og

Question 1

petroleum gas

Answer 1

cooking and heating

Question 2

petrol(gasoline)

Answer 2

fuel for cars

Question 3

naptha

Answer 3

feedstock for the petrochemical industry

Question 4

kerosene

Answer 4

cooking and heating
fuel for aircraft

Question 5

diesel oil

Answer 5

fuel for diesel engines in buses lorries and trains

Question 6

lubricating oil

Answer 6

lubricating machines
making wax/polish

Question 7

bitumen

Answer 7

paving road surfaces

Question 8

name all of it from cold to hot

Answer 8

petroleum gas
petrol
naptha
kerosene
diesel oil
lubricating oil
bitumen

Question 9

name the two main sources of energy

Answer 9

natural gas which contains mainly methane
and petroleum which is a mixture of hydrocarbons that can be separated through fractional distillation

Question 10

what are hydrocarbons

Answer 10

compounds that contain carbon and hydrogen only

Question 11

what is fractional distillation

Answer 11

it separates components according to its boiling point

Question 12

what is a functional group

Answer 12

an atom or group of atoms that give a molecule its characteristic properties

Question 13

large and small molecules placement

Answer 13

heavier fractions are found at the lower sections while the lighter fractions are found at the upper sections