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