8th Class
Science
Coal and Petroleum
Question Bank
Coal and Petroleum Formative Subjective Problems
question_answer
Fill in the blanks (i) ______ is the pure form of carbon (coke / Coal tar/ Coal gas) (ii) __ is a black, thick liquid with unpleasant smell (coke / Coal tar/ Coal gas) (iii) ______is obtained during the processing of coal to get coke. (coke / Coal tar/ Coal gas)