MCQ
Which of the following statement is correct?
- A$\frac{2}{3}\Big|$part is nitrogen and $\frac{1}{3}\Big|\text {rd}$ part is oxygen.
- B$\frac{3}{4}\Big|$part is oxygen and $\frac{1}{4}\Big|$ part is nitrogen.
- C$\frac{1}{2}\Big|$ part is oxygen and $\frac{1}{2}\Big|$ part is nitrogen and other.
- ✓$\frac{1}{5}\big|$part is oxygen and $\frac{4}{5}\Big|$ part is nitrogen and other gases.
