Question

In what way we can make use of the appearance of a bluish green spot around the positive electrode on potato on passing electric current through it? in short me hi batana​

Answer 1

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• The electrons from negative potential of battery through copper wire reach in potato where they undergo in electrolysis of part of copper wire inside the potato in the presence of potato juice (starch). ... This is the reason of greenish spots in potato on passing current through it

Answer 2

Answer:

Here's your answer in short-

The greenish blue colour spot on the potato is useful in identifying the positive terminal of the battery.

B