Q.1- When iron pins are kept in blue colour copper Sulphate solution, the colour of solution changes from blue to green. Why? Write chemical equation also.
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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.
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Answer:
iron is more reactive than copper so it replace copper
FORMULA: Fe+CuSo4------FeSo4+Cu
Explanation:
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