explain Lewis acid-base theory with suitable example
Answers
Introduction:
A Lewis acid is a chemical species that contains an empty orbital which is capable of accepting an electron pair from a Lewis base to form a Lewis adduct.
For example:
NH3 is a Lewis base, because it can donate its lone pair of electrons. Trimethylborane (Me3B) is a Lewis acid as it is capable of accepting a lone pair.
Answer:
Lewis acid can accept an electron whereas Lewis base can donate electrons.
Lewis acid e.g. are Na⁺, K⁺, etc.
Lewis base are OH⁻, CN⁻ etc.
Explanation:
Lewis acid are electrophiles that accept an electron pair. These could cations i.e. elements having positive charge or elements having incomplete octet. Both needs these electron to complete their octet.
Lewis base are nucleophiles that can donate electrons. These are anions having negatively charged ions. These have extra electrons and by losing it they can complete their octet.