Vapour density of air is (considering air as 80% and )

Question

**Options:**
- **A.** [object Object]
- **B.** [object Object]
- **C.** [object Object]
- **D.** [object Object]

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**Difficulty:** MEDIUM | **Chapter:** Mole concept | **Topic:** STP/NTP & percent calculations, empirical formula, minimum molecular mass, vapour density

Accepted Answer

## ✅ Correct Answer: **C**

### 📖 Detailed Explanation:
This question uses gaseous state & mole concept. Relate mass, moles and number of particles using the mole concept and basic stoichiometry; doing the algebra gives the value listed in option C.

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Vapour density of air is (considering air as 80% and )

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