question_answer

Fill in the blanks with the correct combination of words.\[\underline{\,\,\,\,P\,\,\,\,}\]distillation of coal is carried out by heating\[\underline{\,\,\,\,Q\,\,\,\,}\]strongly to \[1000{}^\circ C\] in the\[\underline{\,\,\,\,R\,\,\,\,}\]of air. It yields various useful products. One of them is\[\underline{\,\,\,\,S\,\,\,\,}\]which is the mixture of mainly\[\underline{\,\,\,\,T\,\,\,\,}\]\[\underline{\,\,\,\,U\,\,\,\,}\] and carbon monoxide.

A) P-fractional, Q-coal, R-absence, S-coal gas, T-hydrogen, U-methane

B) P-destructive, Q-coke, R-absence, S-coal gas, T-hydrogen, U-carbon dioxide

C) P-destructive, Q-coal, R-presence, S-coal tar, T-hydrogen, U-methane

D) P-destructive, Q-coal, R-absence, S-coal gas, T-hydrogen, U-methane

E) None of these