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Q.

Iron nails are placed in copper sulphate solution. Write word equations for the reactions involved.


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a

Iron (Fe) +  Copper Sulphate (CuSO4) → Iron Sulphate (FeSO4) + Copper (Cu)

b

Sodium (Na) +  Copper Sulphate (CuSO4) → Sodium Sulphate (NaSO4) + Copper (Cu)

c

Iron (Fe) +  Sodium Sulphate (NaSO4) → Iron Sulphate (FeSO4) + Sodium (Na)

d

None of the above 

answer is A.

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Detailed Solution

Iron (Fe) +  Copper Sulphate (CuSO4) → Iron Sulphate (FeSO4) + Copper (Cu)
When we dip iron nails into Copper sulphate solution, the blue colored Copper sulphate solution turns light green in colour. One can also find reddish brown metallic Copper deposits on the iron nails and deposited at the bottom of the container.
 
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