Which chlorobenzoic acid is more acidic?

No! -COOH is meta directing group and hence it isn’t stabilised at the para position. Hence benzoic acid is more acidic than para-chloro benzoic acid(because the resonating structure of benzoic acid is more stable than p-chloro benzoic acid due to the reason mentioned above).

Which is more acidic p-chlorobenzoic acid or p nitrobenzoic acid?

p-nitrobenzoic acid is more acidic than p-chlorobenzoic acid because nitro-group is a stronger electron withdrawing group as compared to chloro.

Which acid is weaker than benzoic acid CLO P methylbenzoic acid p nitrobenzoic acid O chlorobenzoic acid?

Chlorine is ortho para directing i.e, +R group and it is a ring deactivator i.e, –I group ( and –I effect > +R effect in case of halogens ). So, due to –I effect cholorobenzoic acids will be more basic than benzoic acid.

Why is p-fluorobenzoic acid weaker than p-chlorobenzoic acid?

Fluorine is more electronegative than chlorine even then p-fluorobenzoic acid is a weaker acid than p-chlorobenzoic acid. Explain. -effect which outweighs the +R-effect. Consequently, p-fluorobenzoic acid is a weaker acid than p-chlorobenzoic acid.

Which is more acidic para methyl benzoic acid or para chloro phenol?

It is benzoic acid which is more acidic of the two. In P- chloro phenol the electron withdawing chloro group would also tend to polarise the O-H bond of hydroxyl group.. An acid whose conjugate base is more stable is a stronger acid…

Which is more acidic benzoic acid or para methyl benzoic acid?

Benzoic acid is more acidic than 2- methyl benzoic acid because CH3 has +I effect and hyperconjugative effect that destabilizes the carboxylate ion.

Which is more acidic Ortho nitrobenzoic acid or para nitrobenzoic acid?

Hence, nitro group on ortho position has higher inductive effect compared to the nitro group on para position. Therefore, more liberation of H+ is causes the acidity of a compound. Hence, , o-nitrobenzoic acid is more acidic compared to p-nitrobenzoic acid.

Why chlorobenzoic acid is stronger than benzoic acid?

Methyl groups are weak donors and so p-methylbenzoic acid is weaker than benzoic acid. Chlorine is a weak electron donor (by resonance) and hence p-chlorobenzoic acid is slightly stronger than benzoic acid.

Which is the least acidic compound from the following p-methylbenzoic acid?

The carboxylic acid of least acidic strength among the following is:- Electron donating groups decrease acid strength of benzoic acid and electron withdrawing groups increase acidic strenth. Order of +I effect is -OMe>-Me, so, p-methoxy benzoic acid is weaker acid than p-methylbenzoic acid.

Why para chlorobenzoic acid is more acidic than para fluoro benzoic acid?

Fluorine is more electronegative than chlorine, so logically, fluorobenzoic acid should be a stronger acid than chlorobenzoic acid. Hence, p-fluorobenzoic acid is a weaker acid than p-chlorobenzoic acid.

Which is more acidic para fluoro benzoic acid or para chloro benzoic acid?

First, it is true that para-chlorobenzoic acid is more acidic (pKa=3.98) than para-fluorobenzoic acid (pKa=4.14). Based on inductive effects (aka I-effect), fluorobenzoic acid should be more acidic as ‘F’ is more electronegative than ‘Cl’. The other consideration is resonance.

Which is more acidic meta methyl benzoic acid or para methyl benzoic acid?

The methyl group at ortho & para-position(4-position) destabilises Negative charge of corresponding Carboxylate ion both +I (Inductive ERG)) as well as by +H (hyperconjugation). Hence m-isomer is more acidic than para-isomer.