Question

Prove with the help of simple experiments the presence of any two components in the air

Answer 1

Answer:

Oxygen and nitrogen component in air using a bell jar

Apparatus - a trough, a bell jar, a cork, a crucible and a piece of white phosphorus

Procedure - A trough is filled with and a bell jar is labelled into 5 equal parts.

A crucible which has white phosphorus is placed on a cork is floating in the water.

The level of water inside the jar and outside the jar are adjusted to one level

The phosphorus is ignited by means of an ignited wire.

Observation - The phosphorus burns in air with oxygen and forms dense white fumes of phosphorus pentoxide.

The level of water inside the bell jar rises by 1/5th.

Conclusion - Oxygen is the active component in air which burns phosphorus and nitrogen is the inactive component of air which is not used in burning.