The number of gram atoms of oxygen in `0.2xx10^(24)CO` molecules is
The number of gram atoms of oxygen in `0.2xx10^(24)CO` molecules is
A. `1`
B. `0.5`
C. `5`
D. `9`
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Correct Answer - D
`6.02xx10^(23)` molecules of CO = 1 mole of CO
`6.02xx10^(24)` moles of CO = 10 moles of CO
1 mole of CO contain 1 g atom of oxygen
10 moles of CO contain 10 g atoms of oxygen
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