Question

What happens when :
(1) Zinc granules are added to copper sulphate solution?
(1) Copper turnings are added to iron sulphate solution?
(1) Iron nail is dipped in copper sulphate solution?​

Answer 1

Answer:

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(a)Answer: When zinc granules are kept in copper sulphate solution, the blue colour of copper sulphate disappears and the solution becomes colourless. Zinc is more reactive than copper and hence displaces copper from copper sulphate solution and forms zinc sulphate. ... Hence, copper cannot displace zinc from a compound.

(b) When a piece of copper is placed in iron sulphate solution then no change will be observed. This is because copper is less reactive than iron, therefore, unable to displace it from its solution.

(c) When iron nail is dipped in Copper sulphate, it takes reaction between them and Copper sulphate changes its color from blue to light green. ... This could replace copper from CuSO4, and blue color and FeSO4 is in light green color. It will change its colors due to copper iron nails functions.

Answer 2

Answer:

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1.When Zinc granules are kept in copper sulphate

solution, the blue color of copper sulphate disappears and the solution becomes colourless.

Zinc is more reactive than copper and hence displaces copper from copper sulphate solution and forms zinc sulphate.

2. This reaction shows that iron is more reactive than copper as it displaces copper from its solution and iron passes into solution as Fe2+ ions and ferrous sulphate solution is formed.

3.When Iron nail is dipped in copper sulphate solution, it takes reaction between them and copper sulphate changes its colour from blue to light green..

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