The boiling point of liquid argon is :
(a) −196∘C (b) −183∘C (c) −186∘C (d) −193∘C
If the boiling point of oxygen, argon and nitrogen are -183 C , -186 C and -196 C, which gas forms the liquid first as the air is cooled? Explain the process.
The correct increasing order of the boiling points of liquid oxygen, liquid argon and liquid nitrogen present in liquid air is :
(a) nitrogen, oxygen, argon (b) nitrogen, argon, oxygen
(c) argon, oxygen, nitrogen (d) oxygen, argon, nitrogen