Question

When an iron nail is dipped in blue copper sulphate solution,
(i) colour of the solution changes to green.
(ii) colour of the solution fades.
(iii) brown deposit is observed on the iron nail.
(iv) brown deposit is observed at the bottom of the beaker. which of the above statements are correct? (a) (1)and(2)are correct. (b) (1) and (3) are correct. (c) (2) and (4) are correct. (d) (1) and (4) are correct. ​

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. ... This video explains the chemical change occurs during the reaction of iron nails with copper sulphate solution.

Explanation:

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Answer 2

Answer:

a is the answer

Explanation:

it changes in pale green colour

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