Question

Which of the followings is the strongest acid

A CI3CCOOH
B CICH2COOH
C) CH3COOH
D CI2CHCOOH​

Answer 1

Answer:

a is the correct answer

Answer 2

Answer :

★ Electron withdrawing groups (EWG) stabilise the carboxylate anion and strengthen the acid through delocalisation of the negative charge through inductive effect or resonance effect. Conversely, electron donating group (EDG) decrease the acidity by destabilising conjugate base$.$

★ Acidic strength decreases as the +I effect of the alkyl group increases.

★ More the electronegativity of the atom attached to the carboxyl group, more will be the acidity.

• Acidity ∝ -I effect ∝ 1/+I effect

-Cl group is electron withdrawing group (-I) so it will increase acidity.

⧪ Order of acidity : A > D > B > C

⧪ Strongest acid : Cl₃CCOOH

Cheers!