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Removal of CO2andH2O from atmospheric ai...

Removal of `CO_2andH_2O` from atmospheric air using KOH and anhydrous `CaCl_2` is an example of _______ and _______ changes repectively.

A

chemical, chemical

B

physical, physical

C

chemical, physical

D

physical, chemical

Text Solution

Verified by Experts

By passing atmospheric air through KOH it will react with `CO_2` and forms `K_2CO_3` and `H_2O` which is an acid-base or neutralization reaction. It is an example of a chemical change. `CaCl_2` will absorb the water vapour from the atmospheric air. So, it is an example of a physical change.
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