The number of molecules and atoms present in $1.2 \ g$ of ozone $(O_3)$ are respectively:
- A$1.5 \times 10^{25}, 4.5 \times 10^{20}$
- B$1.5 \times 10^{12}, 4.5 \times 10^{12}$
- C$1.5 \times 10^{24}, 4.5 \times 10^{12}$
- D$1.5 \times 10^{22}, 4.5 \times 10^{22}$
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