A
coloured layer of copper appears
onto the surface of the zinc ribbon when
reacted with copper sulphate.
(a) Blue
(c) White
(b) Red
(d) Black
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Answer:
Blue. When zinc is added to copper sulphate (CUSO4) solution due to more reactivity of zinc, copper is replaced by zinc and forms zinc sulphate. During the process, the colour of the solution changes from blue to colourless.
Explanation:
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