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