When air is blown from mouth into a test tube containing lime water, the lime water turned milky.

Monjur Alahi

When air is blown from mouth into a test tube containing lime water, the lime water turned milky. This shows that exhaled air consists of: 

A) Oxygen 

B) Nitrogen 

C) Water vapour 

D) Carbon dioxide


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Salim Ahmed Kawsar

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(D) Carbon dioxide

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