Question

4. How can you prove that the exhaled air contains carbon dioxide ?


Limewater turns milky
Procedure.​

Answer 1

Answer:

take a beaker add solution of water and quick lime

take a straw and exhale in solution for 1 min you will

notice the solution turns milky

this proves that the exhaled air contains carbon dioxide ?

Answer 2

Take a test tube fill it with freshly prepared lime water take a straw dip it inside lime water and then exhale you will find that the lime water turns its colour to white like milky colour. This shows that the air which we exhale is carbon dioxide.

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