Question

list any two observstion when iron nail is dipped into copper sulphate solution​

Answer 1

Answer:

When an iron nail is dipped in copper sulphate solution,

1. a brown coating of copper is formed on the surface of iron

2.the colour of copper sulphate solution changes from blue to light green.

Explanation:

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Answer 2

Answer:

Observations

1) The nail turns brown as a brown coating of copper is formed on the nail

2) Color of copper sulphate solution changes from blue to green as iron(||) sulphate is formed after the reaction.