1.

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

Answer» Correct Answer - B
(i) Hydrogen
(ii) L.P.G
(iii) Petrol
(iv) Charcoal
(v) Wood


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