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Which of these is pure substance as well as a compound A. An atom of hydrogen B. A sample of oxygen gas C. Sample of carbon dioxide D. A solution of carbon dioxide dissolved in …

Which of these is pure substance as well as a compound A. An atom of hydrogen B. A sample of oxygen gas C. Sample of carbon dioxide D. A solution of carbon dioxide dissolved in …
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Which of these is pure substance as well as a compound A. An atom of hydrogen B. A sample of oxygen gas C. Sample of carbon dioxide D. A solution of carbon dioxide dissolved in water

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User Spoorcc
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B. A sample of oxygen gas.
That's because Oxygen gas has a formula of O2 which is a compound, and it's a diatomic element, meaning it can form a compound by itself. So it's pure, and a compound.
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User JackStat
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