1.

Arrange the given combustible substance in decreasing order of calorific value. (a) Hydrogen (b) Charcoal (c ) Petrol (d) L.P.G( e) Wood

Answer»

bcade
adcbe
badec
baced

Solution :(i) HYDROGEN
(ii) L.P.G
(iii) Petrol
(IV) CHARCOAL
(v) WOOD


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