Question

ln Chemical Effects of Electric Current . pls help me fast ​

Answer 1

Answer:

(a) electrolysis of water

(b) Electrolysis, process by which electric current is passed through a substance to effect a chemical change. The chemical change is one in which the substance loses or gains an electron (oxidation or reduction).

(c)Electrolysis is used extensively in metallurgical processes, such as in extraction (electrowinning) or purification (electrorefining) of metals from ores or compounds and in deposition of metals from solution (electroplating).

Explanation:

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Answer 2

Answer:

(a) Electroplating

(b) Electroplating is applying the metal coating on another pieces of metal using electric current.

(c) i. Purification of metal like in the above case purification of copper.

ii. Coating a volatile metal like iron with Chromium and other metals to prevent it from rusting and giving it a lustrous(shiny) surface.