Q.

The number of oxygen atoms in 4.4 g of CO2 is approx.

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a

6×1022

b

1.2×1023

c

6×1023

d

12×1023

answer is B.

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Detailed Solution

44g of CO2 has 2×6×1023 atoms of oxygen 4.4g of CO2 has =12×102344×4.4=1.2×1023 atoms.
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