Two flasks of equal volumes are evacuated, then one is filled with gas A and other with gas B at the same temperature and pressure. The weight of B wa...

Question

Two flasks of equal volumes are evacuated, then one is filled with gas A and other with gas B at the same temperature and pressure. The weight of B was found to be 0.80 gm while the weight of gas A is found to be 1.40 gm. What is the weight of one molecule of B in compared to one molecule of A

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

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**Difficulty:** HARD | **Chapter:** Mole concept | **Topic:** Law of chemical combination, atomic & molecular mass, mole concept, calculations

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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Two flasks of equal volumes are evacuated, then one is filled with gas A and other with gas B at the same temperature and pressure. The weight of B wa...

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