Question

How will you prove that air supports buming?
How will you show that air is dissolved in water?​

Answer 1

Answer:

1

answer : Take a candle and try to burn it in air. Take another candle and try to burn it while keeping it submerged in water. You will observe that, while the candle burns in air; it does not burn in water.

2

answer : To show that air is dissolved in water we take water in a pan and heat it. Just before it boils, you will notice some bubbles at the inner surface of the pan. These bubbles are formed because of air dissolved in water

Answer 2

• You will find that the candle blows out after burning for some time, and the water level inside the inverted glass rises to some extent. The component oxygen of air inside the glass is used up in burning. Therefore, water occupies that space. This shows that air supports burning.
• We can show that air isdissolved in water with the help of following activity: ... Just beforewater begins to boil, you will notice some bubbles at the inner surface of the pan. These bubbles come from the air dissolved in water. This shows that air is dissolved in water.