Question

Which fraction of coal tar is rich in benzene ?

• A. Light oil
• B. Heavy oil
• C. Green oil
• D. Middle oil

Answer 1

The correct option is A Light oil

Fraction	Temperature Range	Temperature Range	Name of the fraction	Constituents	% (V/V)
	${}^{0}C$	$K$
1	up to 170	up to 443	Light oil	Benzene,Toulene,Xylene	2.25
2	170-230	443-503	Middle oil	Phenol,Cresol, Napthalene	7.5
3	230-270	503-543	Heavy (cresote)oil	Cresol,Napthalene, Napthol	16.5
4	270-360	543-633	Anthracene (green) oil	Anthracene	12
5	-	-	Pitch residue in still	Carbon	56

Option A is correct.