11. Petroleum is formed from
12. Petroleum is mixture of
13. Purest form of carbon is
14. Refining is
15. The characteristic of coal is
16. The first oil well was drilled in
17. The layer containing petroleum oil & gas is
18. Water is a ..........
19. When coal burns in air then
20. When heated in air produces
MCQ Multiple Choice Questions and Answers on Coal and Petroleum
Coal and Petroleum Trivia Questions and Answers PDF
Coal and Petroleum Question and Answer
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