A) Light oil
B) Middle oil
C) Green oil
D) Heavy oil
Correct Answer: C
Solution :
[a] Light oil fraction is distilled upto \[\text{170}{{\,}^{\text{o}}}\text{C}\text{.}\] It has benzene, toluene and xylene. [b] Middle oil fraction or carbolic oil fraction distills between \[170-230{{\,}^{o}}C.\] It has phenol and pyridine. [c] Green oil or anthracene oil fraction distills between \[270-360{{\,}^{o}}C.\] It has anthracene and phenanthrene. [d] Heavy oil distills between \[230-270K.\] It has methyl and higher alkyl phenols.
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