Q60 of 76 Page 272

Which of the following effects is not prodused by the chemical reactions brought about by an electric current?

Formation of a precipitate is not produced by the chemical reactions brought about by an electric current. Because it does not involves any chemical reaction but involves chemical changes in the solutions

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One of the following is not used for electroplating metal articles. This one is :

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An arrangement having two carbon rods kept in a conducting liquid in a vessel is known as:

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Which of the following can be electroplated with chromium ?

A) Bakelite B) Graphite


C) Steel D) Teflon

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In order to obtain a coating of silver metal on a flower vase made of copper, the electrolyte has to be: