Question

what is the color of copper sulphate solution when an iron nail is dipped in it

Answer 1

Answer:

copper sulphate colour is blue

And

when iron nail is put in copper sulphate it's colour changes to green

because iron displacing copper from copper sulphate to become Resources.

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Answer 2

$\huge\underline\mathfrak{AnswEr:-}$

$\longrightarrow$ The copper Sulphate solution turns into red-brownish colour.

$\huge\underline\mathfrak{Reason:-}$

$\longrightarrow$ Iron is more reactive than copper, it displaces copper from copper sulphate solution. That's why the colour of copper sulphate changes.

$\huge\underline\mathfrak{ThAnKs...}$