Relevant Competitive Tests:
Calorific value of coal is of the order of _______________________?
A. 200-400 kcal/kg
B. 800-1200 kcal/kg
C. 2000-4000 kcal/kgCorrect Answer
D. 5000-8000 kcal/kg
E. 8000-10,000 kcal/kg
Correct Option: C. 2000-4000 kcal/kg
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