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Question

Ratio of number of atoms in one mole of oxygen molecule to ozone is _____.


A

47

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B

23

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C

13

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D

24

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Solution

The correct option is B

23


Oxygen is diatomic (O2) and ozone is triatomic (O3).

Thus,

1 mole of oxygen = 6.022 × 1023 molecules of O2 = 2 × 6.022 × 1023 atoms of O.

1 mole of ozone = 6.022 × 1023 molecules of O3 = 3 × 6.022 × 1023 atoms of O

The ratio is = 2×6.022×10233×6.022×1023 = 23


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