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Which of the following has the smallest ...

Which of the following has the smallest number of molecules ?

A

0.1 mole of `CO_2` gas

B

11.2 L of `CO_2` gas at STP

C

22 g of `CO_2` gas

D

`22.4 x 10^3` mL of CO2 gas at STP

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The correct Answer is:
A
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