Chemistry question about ideal gases?

Question

1. Which of the following gases deviates most from idea behavior?

A) SO2
B) Ne
C) CH4
D) N2
E) H2

and explain why please. what does "ideal" gas mean? and wat is the Raoult's law?

thanks for your help

Answer 1

A) SO2

It is polar on nature and thus intermolecular interactions are considerable.

An Ideal gas follows the properties as laid out in the ideal gas eqn.

Raoult's law is concerned with the change in vapour pressure.