CO গ্যাসের বাষ্পঘনত্বের সাথে সমান বাষ্পঘনত্ব বিশিষ্ট গ্যাসটি হলো—

A CO₂

B N₂

C H₂

D O₂

Correct Answer & Explanation

Option B

Option B is the correct answer according to official curriculum guidelines.

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