Question

List two observations when iron nails are immersed in copper sulphate solutio
OR
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Write chemical name and formula
of a salt used to set fractured bones in hosp
3
Which of the following compounds can have a triple bond?
a)C2H.
b) C:H,
c) C3H.
d) CHẾ
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white at noon?
5
The image formed by a concave mirror is observed to be virtual erect and beh
Where is the object placed?​

Answer 1

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Answer 2

Answer:

Explanation:

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed in the surface of iron and the colour of copper sulphate solution changes from blue to pale green. The reaction shows that iron is more reactive than copper because it displaces copper from the copper sulphate solution.