Uploaded September 2021 | Updated September 2026, 3 weeks ago

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Welcome to Elearnin, In this 3d animated videos we will teach you about Acids and Bases from the Class 11 Chemistry - CBSE – NCERT by Elearnin

In this video you will learn about Acids and Bases

• Arrhenius Concept of Acids and Bases
• The Bronsted - Lowry Acids and Bases
• Lewis Acids and Bases


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Arrhenius Concepts of Acids and Bases
The substances that dissolve in water to produce H+ ions are called acids and the substances that dissolve in water to produce Hydroxyl ions are called bases as postulated by Arrhenius.

Bronsted – Lowry concept of Acids and Bases
According to the Bronsted - Lowry concept, acids are the substances capable of donating a hydrogen ion while bases are the substances capable of accepting a hydrogen ion.
In simpler words, proton donors are acids and proton recipients are bases.

Lewis Concept of Acids and Bases
A chemical that accepts a pair of electrons is an acid while a chemical that donates a pair of electrons is called a base. This was postulated by Lewis in the year 1923. Based on Lewis concept of acids, all acids don’t contain protons.