Account for the following by writing balanced chemical equations a)Colour of Copper Sulphate changes when an iron nail is dipped in b) Brown coloured copper powder on heating in air turns into black substance ( Need fast)
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Explanation:
Blue colour of the copper sulphate solution changes into green colour & then iron nail acquires a brownish look. This is because that iron is more reactive than copper.
The following chemical reaction takes place in this activity.
Fe+CuSO
4
→FeSO
4
+Cu
In this reaction, iron displaces copper from CuSO
4
solution.
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