Oxidation Number
It is an imaginary or apparent charge developed over atom of an element when it goes from its elemental free...
Redox Reaction
A reaction in which oxidation and reduction simultaneously take place is called a redox reaction.
In all redox reaction, the total increase in oxidation number...
Classical Idea of Redox Reactions
Classical Idea of Redox Reactions - Oxidation and Reduction Reactions
Oxidation
Reduction
Addition of Oxygen
e.g. 2Mg + O2 2MgO
Removal of Oxygen
e.g. CuO + C Cu + CO
Removal...
Buffer Solutions & Solubility Products
Buffer Solutions
The solutions which resist change in pH on dilution or with the addition of small amounts of acid or alkali, are called Buffer...
Common Ion Effect & Hydrolysis of Salts
Common Ion Effect
If in an aqueous solution of a weak electrolyte, a strong electrolyte is added having an ion common with the weak electrolyte,...
Different concepts for Acid & Bases
Arrhenius Concept of Acids and Bases
Arrhenius Acids:
According to Arrhenius theory, acids are substances that dissociates in water to give hydrogen ions H+(aq).
Arrhenius Bases:
Bases are...
Ionic Equilibrium
Ionic equilibrium is the study of equilibrium in the reactions where formation of ions take place in aqueous solution.
Electrolytes:
Substances which conduct electricity in their...
Le Chatelier’s principle
It states that a change in any of the factors that determine the equilibrium conditions of a system will cause the system to change...
Law of Chemical Equilibrium (Law of Mass Action)
At a constant temperature, the rate of a chemical reaction is directly proportional to the product of the molar concentrations of the reactants each...
Equilibrium state
When rate of formation of a product in a process is in competition with rate of formation of reactants, the state is then named...