Chemical Effects of Electric Current


 
 
Concept Explanation
 

Chemical Effects of Electric Current

Electricity can bring about chemical changes, so it is said to have chemical effects. The breaking up of water into hydrogen and oxygen is actually a' chemical decomposition' reaction caused by passing an electric current through impure water.

Michael Faraday, a well- known British experimental physicist, began his experiments on the passage of electricity through liquids (electrolyte) in 1834. He observed interesting chemical changes (effects) taking place when an electric current pass through an ionic solution.

Sample Questions
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Question : 1

Chemical effect of current involves conversion of _______________________

Right Option : C
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Explanation
Question : 2

Which of the following are correct :

(a) The breaking up of water into hydrogen and oxygen is actually a' chemical combination' reaction caused by passing an electric current through impure water.

(b) When electric current is passed through acidified water by using carbon electrodes, than a chemical reaction takes place to form hydrogen gas and oxygen gas.

(c) Michael Faraday observed interesting no change (effects) takes place when an electric current pass through an ionic solution.

 

Right Option : D
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Explanation
Question : 3

Which of the following is not an application of the chemical effect of electric current?
 

Right Option : D
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Explanation
 
 
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