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Give uses of carbon dioxide. |
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Answer» Solution :CARBON dioxide can be obtained as a solid in the form of dry ice by allowing the liquefied `CO_2` to EXPAND rapidly. `CO_2` is neither combustible nor supporter of combustion. Therefore it is used as a fire extinguisher. Dry ice is used as a refrigerant for ice-cream and frozen food. `CO_2` used in manufacturing of washing soda (Solvay.s Process). Dry ice is used in CURING of local burns and in hospital for surgical operation of sores. `CO_2` is used as carbogen (85% `O_2` + 5% `CO_2`) in artificial respiration to treat the poisonous effect of CO to the patient. `CO_2` is used for the purification of cane sugar juice in manufacturing of sugar. `(H_2CO_3 + HCO_3^-)` buffer system helps to maintain pH of blood between 7.26 to 7.42. Being acidic in nature, it combines with ALKALIES to form metal carbonates. A substantial amount of `CO_2` is used to manufacture urea. `CO_2` is used in photosynthesis by GREEN plants. |
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