The acidity and pKa values depend on the stability of a conjugate base. The nature of the element, electronegativity, resonance and hybridization contribute to the acid strength.
![[91] Nucleophilic Substitution](https://i.pinimg.com/originals/2b/5c/5e/2b5c5ee3ae915ec764aa5198266b7e18.png)
