2. The given diagram displays a chemical reaction showing iron nails dipped in copper sulphate solution. Observe carefully and indicate the correct option which the diagram represents.
(A) Iron nail becomes brownish in colour and the blue colour of copper sulphate remains as such.
(B) Iron nail becomes brownish in colour and the blue colour of copper sulphate fades.
(C) Iron nail becomes green and the blue colour to copper sulphate fades.
(D) No change occurs.
Answers
Answer:
option B
Explanation:
iron nail become brownish in colour because iron displaced cropper from copper sulphate solution which is why blue colour of copper sulphate fades
Answer:
B) Iron nail becomes brownish in color and the blue color of copper sulphate fades
Explanation: The iron nail becomes brownish in color and the copper sulphate changes its color to green. The reason is as follows:
The change is happened is due to the reaction between copper sulphate and iron. The change of the solution from blue to green is due to the formation of iron sulphate , which is a new substance. The brown deposit that you seen on iron nail is the copper(rust).
The equation is:
copper sulphate solution(blue) + iron( fe) = Iron sulphate solution( green ) + copper( the brown deposit )