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Question

2.2

C O_{2}

গ্রাম গ্যাসে অণু সংখ্যা কত ?

2.5 \times 10^{18}

3.0 \times 10^{20}

3.5 \times 10^{20}

2.5 \times 10^{22}

3.0 \times 10^{22}

ANS : 5

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