Question

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Answer 1

a) answer

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed in the surface of iron and the colour of copper sulphate solution changes from blue to pale green. The reaction shows that iron is more reactive than copper because it displaces copper from the copper sulphate solution.

b) answer

When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.

d) answer

Higher the standard reduction potential (Eº) value, greater the tendency of the species to accept electrons and undergo reduction. Hence, copper sulphate solution cannot be stored in an iron vessel as the iron vessel dissolves forming Fe2+ ions and Cu2+ ions from copper sulphate solution forms Cu. ...

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Answer 2

Answer:

(a) the colour of the solution changes from blue to pale green

(b) When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.

(c) Fe+CuSO4 = FeSO4 +Cu

(d) No, because iron is more reactive than copper therefore reaction will take place

(e) Displacement reactiion

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