Q. As time passes, the calorific value of stored coal

(A) May increase or decrease (depends on the method of storage)
(B) Remains unaltered
(C) Increases
(D) Decreases

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✅ Correct Answer: (D) Decreases

Published by Ram Sharma ⭐ 193.88K Points at 14-May-2023 02:56 pm in Fuels And Combustion

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