Question

sayanatichakaraborty this is for u
plz read this i found IT

DURING FRACTIONAL DISTILATION COAL TAR IS HEATED AND DISTILLS AWAY its volatile compounds
namely benzene ,toluene ,xylene in temperature range of 350 to 443k.
these vapors are collected at upper part

sorry for late answer!!​

Answer 1

Answer:

Ok .

No problem but thank you so much for this answer