Question

Explain the following process/events.

1. Put two to three iron nails in the blue solution of copper sulphate and after 15 to 20

minutes the colour of the solution turns green.

(2)

2. Give the basic difference between weather and climate. (2)

3. The red litmus paper turns blue when it is dipped into the solution of magnesium oxide

with water.​

Answer 1

Answer:

Reason for first question :

Because iron reacts with cooper sulphate so that's why there is a change in colour of the solution

2) Weather refers to short-term changes in the atmosphere, climate describes what the weather is like over a long period of time in a specific area.

3) Magnesium oxide changes the colour of red litmus paper to blue. This reaction shows that magnesium oxide is basic in nature.