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Grade: 9

                        

does fractional DISTILLATION of coaltar leds to formation of benzene??????????

9 years ago

Answers : (1)

shayma taleeb
14 Points
							

Arenes are isolated by fractional distillation of coal tar

name of fraction temprature range main constituent
light oil fraction upto443 benzen,toluene,xylene
middle oil fraction 443-503 phenol , naphthalene , pyridine
heavy oil fraction 503-543 naphthalene , naphthol and cresol
green oil 543-633 anthracene ,phenanthrene
pitch (left as residue) non-volatile carbon
9 years ago
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