📊 Fuels And Combustion
Q. Bright coal
  • (A) Contains more than 90% durain
  • (B) Contains more than 90% fussain
  • (C) Is non-coking
  • (D) Contains mainly vitrain & clarain and is generally coking
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✅ Correct Answer: (D) Contains mainly vitrain & clarain and is generally coking

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