7.5 grams of a gas occupy 5.6 litres of volume at STP. The gas is

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: **A**

### 📖 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 A.

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7.5 grams of a gas occupy 5.6 litres of volume at STP. The gas is

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