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Q.

Which has minimum number of atoms of oxygen ?

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a

10 mL H2O (l)

b

0.1 mole of V2O5 (s)

c

12 gm O3(g)

d

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 mol
CO2 =0.4 mol O-atoms =0.4NA O-atoms

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