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Question
Which of the following is/are uses of CO2?
Which of the following is/are uses of CO2?
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Solution
The correct option is D None of these
A mixture of 95% O2 and 5% CO2 is used for victims of CO poisoning and pneumonia patients in artificial respiration.
CO2 is slightly soluble in water. Its solubility in water, however, increases with increase in pressure. Soda water and other aerated soft drinks are, in fact, a solution of CO2 in water under pressure.
Air containing 15% CO2 does not support combustion therefore, it is used for extinguishing fire.
None of these
A mixture of 95% O2 and 5% CO2 is used for victims of CO poisoning and pneumonia patients in artificial respiration.
CO2 is slightly soluble in water. Its solubility in water, however, increases with increase in pressure. Soda water and other aerated soft drinks are, in fact, a solution of CO2 in water under pressure.
Air containing 15% CO2 does not support combustion therefore, it is used for extinguishing fire.
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