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:

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Answer 2

Answer:

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