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Chemical Effects of Electric Current — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceChemical Effects of Electric Current3 Marks
Question
When an electric current is passed through a cut potato for a considerable time, a coloured spot is formed around one of the electrodes:
$A.$ What is the colour of the spot?
$B.$ Around which electrode $($positive or negative electrode$)$ the coloured spot is formed?
$C.$ Which effect of electric current is involved in this case?
✓

Answer

$A.$ The spot color is Greenish blue.
$B.$ The coloured spot is formed around the positive electrode.
$C.$ This is known as Chemical effect.

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