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- It has a sweet sickly smell; oxygen is odourless.
- It will not give brown fumes (NO2) with nitrogen (II) oxide; oxygen does.
- It is fairly soluble in cold water; oxygen is insoluble.
- It extinguishes feebly burning sulphur; oxygen does not.
Kavungya answered the question on April 27, 2019 at 09:53
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