1.

Arrange the fuels in the order of Increasing calorific value: LPG, Cowdung cakes, Petrol, Coal, Hydrogen gas.

Answer»

Coal , COWDUNG CAKES, Petrol, LPG , Hydrogen
Hydrogen, LPG , Petrol , Coal , Cowdung cake
Cowdung cakes, Petrol, Coal , LPG , Hydrogen
Cowdung cakes, Coal, Petrol , LPG, Hydrogen

ANSWER :A::C::D


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