Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Structure of Atom
A gas can be best liquefied by ________.
1
Increasing the pressure and lowering the temperature
2
Increasing the pressure
3
Lowering the temperature
4
More than one of the above
5
None of the above