A piece of granulated zinc was dropped into copper sulphate solution. After some time, the colour of the solution changed from :
(1)light green to blue (2)blue to colourless
(3) light green to colourless (4)bule to yellow

Correct answer: (2) blue to colourless

Explanation: Zinc is more reactive than copper, hence it displaces copper from its sulphate solution to form zinc sulphate, as a result, the blue colour solution turns colourless.

The chemical equation for the reaction is given below:

$Zn (s) + CuSO_4 (aq) → ZnSO_4 (aq) + Cu (s)$

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Updated on: 10-Oct-2022

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(1)light green to blue	(2)blue to colourless
(3) light green to colourless	(4)bule to yellow

A piece of granulated zinc was dropped into copper sulphate solution. After some time, the colour of the solution changed from :(1)light green to blue(2)blue to colourless(3) light green to colourless(4)bule to yellow

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A piece of granulated zinc was dropped into copper sulphate solution. After some time, the colour of the solution changed from :
(1)light green to blue (2)blue to colourless
(3) light green to colourless (4)bule to yellow