…………is a complex mixture of solid, liquid or gaseous hydrocarbons.
a) coal
b) natural gas
c) petroleum
d) plants
Petroleum is generally…………in color and unpleased smell.
a) dark brown
b) dark gray
c) dark red
d) dark green
The hydrocarbon in petrol are…………
a) alkanes
b) cycloalkanes
c) aromatic
d) all of these
after…………petrol is used as a fuel.
a) cooling
b) heating
c) refining
d) none of these
petrol is used for the production of useful products such as…………
a) synthetic rubber
b) explosive
c) both a & b
d) none of these
for the production of plastic…………is used.
a) coal
b) petrol
c) animal
d) sui gas
