Question

10) When iron nail is placed in the test tube containing copper sulphate solution, after few
hours brown deposits are formed on iron nail. What could be the reason?
a) Zinc gets deposited on iron nail
b) Iron gets deposited on copper nail
c) Magnesium gets deposited on iron nail
d) Copper gets deposited on iron nail.​

Answer 1

Answer:

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed on the surface of iron and the colour of copper sulphate solution changes from blue to light green.

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Answer 2

Chemical reaction of iron nail with copper sulphate solution in water. Iron displaces copper ions from an aqueous solution of copper sulphate. It is a single displacement reaction of one metal by another metal.

Explanation:

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