Electrolytes and its Types


 
 
Concept Explanation
 

Electrolytes and its Types

Electrolytes:

A compound that conduct electricity in molten (fused) or aqueous (solution) state and which simultaneously undergoes decomposition (breaking into ions), with the passage of an electric current through it, is an electrolyte. We classify electrolytes as strong electrolytes and weak electrolytes. This is done on the basis of the extent to which the electrolyte breaks into ions.

1.  Strong Electrolytes:

These are the electrolytes that ionize completely to form free mobile ions in the solution. A large number of free mobile ions are available, in them, to conduct electricity. For eg. Nh_4Cl,: KOH,:HCl.

2.  Week Electrolytes:

These are the electrolytes that ionize only partially to form free mobile ions. Only a small number of free mobile ions are available, in them, to conduct electricity. For eg. HF;, AgCl etc.

Some more  examples of strong and weak electrolytes:

Strong Electrolyte Weak Electrolyte

Sea water

Nitric acid

Copper sulphate solution

Sodium chloride

Sulphuric acid

Ordinary tap water

Oxalic acid

Carbonic acid

Ammonium hydroxide

Citric acid

 

Sample Questions
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Question : 1

___________ is a strong electrolyte.

Right Option : B
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Question : 2

The acid used in voltaic cell is ______________

Right Option : B
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Question : 3

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

Right Option : A
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Explanation
 
 
 
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