Question

Q1.In the market we get plastic coated iron wire. Is plastic coating on iron by the process of
electroplating? If yes, How? If not, why?
Q2.How a lead pencil sharpened at both the ends to expose lead can be put in a tester in place of copper wire?​

Answer 1

Explanation:

Electroplating cannot plate any plastic because: ... In electroplating, the coated material must be a strong electrical conductor. Plastic, on the other hand, is a poor conductor of electricity. As a result, electroplating cannot be used to layer plastic on metal.

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Answer 2

In electroplating, the object to be coated must be a good conductor of electricity. ... But plastic is a material which is a bad conductor of electricity. v. Hence, plastic cannot be coated on a metal by the process of electroplating.

questions 2 Answer: because the pencils nip is made up of graphite and graphite is a good conductor of electricity and so a sharpened pencil can be used as a conductor due to its presence of graphite in it.