Lewis Theory of Acids and Bases:
- The Lewis theory of acids and bases was proposed by American chemist Gilbert Lewis in 1923.
- According to this theory, an acid is a substance that can accept an electron pair, and a base is a substance that can donate an electron pair.
- other words, an acid is an electron pair acceptor and a base is an electron pair donor.
- This theory extends the definition of acids and bases to include compounds that are not necessarily ionic in nature.