Q.

Which has minimum number of atoms of oxygen ?

Easy

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10 mL H2O (l)

0.1 mole of V2O5 (s)

12 gm O3(g)

12.044 x 1022 molecules of CO2

answer is D.

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Detailed Solution

12.0214 x 1022 molecules of CO2 = 0.2 molCO2 =0.4 mol O-atoms =0.4NA O-atoms

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