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.
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. .
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. 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 |
Which of the following is a weak electrolyte? | |||
Right Option : A | |||
View Explanation |
Read thge given statements and select the correct option. Statement 1 : The conductivity of an electrolyte is very low as compared to a metal at room temperature. Statement 2 : The density of free ions in electrolyte is much smaller than density of free electrons in metals. | |||
Right Option : A | |||
View Explanation |
When copper rod donates electrons to hydrogen ions, it gains ________charge. | |||
Right Option : A | |||
View Explanation |
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