Question

What is Acid ?
What is Base ? ​

Answer 1

Answer:

An acid is a substance that donates protons (in the Brønsted-Lowry definition) or accepts a pair of valence electrons to form a bond (in the Lewis definition). A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids.

Explanation:

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Answer 2

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Acids :-

1) According to the Lewis definition, acids are molecules or ions capable of coordinating with unshared electron pairs.

2) The Arrhenius theory of acids and bases states that “an acid generates H+ ions in a solution whereas a base produces an OH– ion in its solution".

3) The Bronsted-Lowry theory defines “an acid as a proton donor and a base as a proton acceptor”.

Bases :-

1) According to Lewis defination , bases are molecules or ions having unshared electron pairs available for sharing with acids.

2) The Arrhenius definition of a base states that bases are the substances that, when dissolved in water, increase the concentration of OH– ions in it.

3) The Bronsted-Lowry theory defines a base as a proton acceptor (or H+ ion acceptor).