NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

3L mixture of ${O}_2(\mathrm{g})$ and ${N}_2(\mathrm{g})$ is passed through ozonizer. The gas mixture obtained contains ${O}_2, {O}_3$ and ${N}_2$ gases only. This obtained mixture is passed through alkaline pyrogallol and then through turpentine oil, there were $1100 \mathrm{~mL}$ and $600 \mathrm{~mL}$ volume contractions respectively. The volume of ${O}_2(\mathrm{g})$ and ${N}_2(\mathrm{g})$ in the original mixture respectively is