BANK EPFO Stenographer (Group C) Mock Test 2023 General Science Chemistry Chemistry in Everyday Life
During fractional distillation of petroleum, the vapours with the lowest boiling point condense
1
In the upper most part of the fractionating tower
2
In the lower part of the fractionating tower
3
In the middle part of the fractionating tower
4
Obtained as the residue at the bottom of the tower