Question

explain the following process /events
1) put two or three iron nails in the blue solution of copper sulphate and after 15 to 20 minutes the colour of the solution turns green.
2) give the basic difference between weather and climate.
3) the red litmus paper turn blue when it is dipped in to the solution of magnesium oxide in water. ​

Answer 1

Answer:

. Fe(s)+CuSO

4

⟶Cu(s)+FeSO

4

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed on the surface of iron and the colour of copper sulphate solution changes from blue to light green. This reaction shows that iron is more reactive than copper as it displaces copper from its solution and iron passes into solution as Fe

2+

ions and ferrous sulphate solution is formed.

Explanation:

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Answer 2

Answer: When an iron nail is dipped in copper sulfate solution, a brown coating of copper is formed on the surface of iron, and the color of the copper sulfate solution changes from blue to light green.