| (i) Coal |
| (ii) Dung cake |
| (iii) Kerosene oil |
| (iv) Hydrogen gas |
A) (ii), (i), (iii), (iv)
B) (ii), (iv), (iii), (i)
C) (iv), (iii), (i), (ii)
D) (iii), (ii), (i), (iv)
Correct Answer: A
Solution :
The calorific value of fuels is Dung cake - 6 - 8000 kJ/kg, Coal - 25 - 33000 kJ/kg, Kerosene oil - 45000 kJ/kg Hydrogen gas -150000 kJ/kg Hence, ascending order of the calorific value of fuels is dung cake, coal, kerosene oil and hydrogen gas.
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