Question 4 • Chemistry
At the same temperature and pressure, equal amounts in moles of gases occupy equal volumes (Avogadro’s law). Therefore, 1 mol of CO₂ and 1 mol of N₂ have the same volume, so choice B is correct. Two moles of O₂ occupy twice the volume of 1 mol, not the same volume.
AI-written and checked against the verified answer.