Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test 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
More than one of the above.
5
None of the above