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

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## ✅ 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. --- *This is an official solution provided by Chem Mantra. For more chemistry questions and solutions, explore our [question bank](/courses).*

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Mole conceptLaw of chemical combination, atomic & molecular mass, mole concept, calculationsHARDJEE Chemistry