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Pick out the correct statement ?
A. Oxygen content decreases from lignite to bituminous coal as the coalification increases
B. The less the oxygen content, better is the coal, as it reduces the calorific value
C. With increase in oxygen content, moisture holding capacity of coal increases and the caking power decreases
D. All A., B. and C.Correct Answer
Correct Option: D. All A., B. and C.
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