Question

1 .the burning of wood
2.which one of the following is reversible change
3.when iron is heated it 4. The process where water changes to vapour after heating in 5.

Answer 1

Answer:

burning of wood is a chemical change or inreversible. iron is heated is a reversible change and the process changes water to changes to vapour is also a reversible change and it is the process called evaporation if it is below their below point.

Answer 2

Answer:

option 4: The process where water changes to water vapour after heating.

Explanation:

Because when water is heated at 100°C it becomes water vapour and when we condence and cool the water vapour by distillation it will become at the first stage means water and when this process nature reveals then this process is called WATER CYCLE.

I hope this will help you to study this concept.!!