In what respect will two dry samples of nitrogen gas differ from each other if sample 1 is prepared by completely removing CO2 and O2 from air, and sample 2 is prepared by passing purified nitrogen(i)oxide over heated copper? sample 1 is
- purer than sample 2
-
slightly denser than sample 2
- in all respects the same as sample 2
- colourless but sample 2 has a light brown colour
- slightly less reactive than sample 2