What does show in figure a when air being passed into the lime water with a Pichkari b being exhaled into lime water
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Answer:
You will find that the lime water, in which you exhaled air turns milky earlier than the lime water in which air is passed through a pichkari. This indicates that amount of carbon-dioxide in the air that we breathe out is more
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Action of air on Lime water
Explanation:
Air
It is a mixture of gases .
Its composition is :
Oxygen =21%
Nitrogen =78.09%
Carbon dioxide =0.03%
Argon =0.93%
small amounts of other gases
When exhaled air is passed through lime water , it turns lime water milky due to formation of calcium carbonate .
The reaction is given below :
CO₂ + Ca(OH)₂---> CaCO₃ + H₂O
(milkiness )
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