Argon, oxygen, and nitrogen are obtained from air by fractional distillation. Liquid air, at 250°C, is warmed up, and the gases are collected one by one. Is liquid air is mixture or a pure substances.
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liquid air is a mixture of argon Oxygen and nitrogen....... because even after cooling liquification of gases they remain mixed with each other
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Argon, oxygen, and nitrogen are obtained from air by fractional distillation. Liquid air, at 250°C, is warmed up, and the gases are collected one by one then liquid air is a pure substance.
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