Question

Carboxylic acids are easily ionised. The main reason of this statement :

• A. Hydrogen bond
• B. Reactivity of $\alpha$-hydrogen
• C. Resonance stabilisation of carboxylate ion
• D. Absence of $\alpha$-hydrogen

Answer 1

The correct option is C Resonance stabilisation of carboxylate ion

Carboxylic acids are easily ionized because there is resonance in carboxylate ion due to p- electron of oxygen atom shifting. So, $H^{+}$ gets ionised very easily.