Question

. A student took a solution of copper sulphate in a beaker and put a clean iron nail
into it and left it for about an hour.
(a) What changes would he observe after half an hour?
(b) Give suitable explanation for the changes observed.
(c) Write a word equation for the chemical change.​

Answer 1

Answer:

(a) after half an hour the colour of copper sulphate from blue which change to transparent

(b)the explanation for the changes observed is that iron nail is more reactive than copper so it displaces the copper from copper sulphate through displacement reaction

(c) CuSo4 + Fe=Feso4+Cu

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