Two flasks I and II contain oxygen $(O_{2})$ and ozone $(O_{3})$ respectively. Flask I contains 0.5 mole of oxygen while flask II contains 0.4 mole of ozone. Which of the two flasks have greater number of oxygen atoms.

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Both flasks I and II have same number of oxygen atoms.

Flask I containing oxygen has greater number of oxygen atoms as compared to flask II

Flask II containing ozone has greater number of oxygen atoms as compared to flask I

Number of atoms of oxygen cannot be calculated from the available data.

answer is A.

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Detailed Solution

Flask II containing ozone has greater number of oxygen atoms as compared to flask I

1 mole of $O_{3}$ contains $\to 3 \times N_{A}$ of atom

0.4 mole of $O_{3} \to x \Rightarrow x = 0.4 \times 3 N_{A}$

1 mole of $O_{2}$ contains $\Rightarrow 2 \times N_{A}$ of atoms $\Rightarrow x = 0.5 \times 2 N a$

0.5 mole of $O_{2}$ contains $\to x$ .

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