CBSE
Gujarat Board
Haryana Board
Class 10
Class 12
The product obtained by destructive disillation of coal is
coal tar
coke
coal gas
all of the above
D.
The natural solid fuel is
coal
LPG
charcoal
A.
The purest form of carbon is
none of the above
C.
The least polluted fuel is
petrol
kerosene oil
CNG
An exhaustible natural resource is
water
air
sun light