Which is more acidic ortho chlorophenol or fluorophenol?

This site quotes pKa , ortho-chlorophenol=8.49 , and this site quotes pKa , ortho-fluorophenol=8.70 …and so chlorophenol is SLIGHTLY more acidic than fluorophenol.

Which chlorophenol is most acidic?

Due to electron withdrawing nature of –Cl group or halogen group it is easier to remove hydrogen from m-chlorophenol as compared to phenol. So, the acidity of m-chlorophenol is higher than phenol. Finally we can conclude that m-chlorophenol is most acidic amongst them all. Hence, M-chlorophenol is most acidic.

Why is fluorophenol weakest acid than para and meta fluorophenol?

O-fluorophenol is more acidic than p-fluorophenol. This is because fluorine is more electronegative than oxygen and when both the conjugate bases are formed the negative charge on oxygen is more stabilised by ortho fluorine than by para fluorine due to lesser distance and hence greater inductive effect.

Which of the following is least acidic fluorophenol chlorophenol bromophenol Iodophenol?

In the case of p-halophenols, or 4-halophenols, 4-fluorophenol is the least acidic as the -I and +R effects balance each other out due to almost identical sizes of 2p orbitals of C and F and hence it is almost as acidic as phenol itself.

Why is para fluorophenol the least acidic?

So 2-fluorophenol i.e. o-fluorophenol is more acidic because proximity. That is orthofluoro phenoxide ion will be stabilized by electron withdrawing effect of F atom present nearby. Whereas in meta and para isomer as the distance increases stabilization of phenoxide decreases. Therefore acidity decreases.

Which is more acidic para chloro phenol or para chloro phenol?

Of the three, ortho-chlorophenol is the most acidic with a pKa of 8.5, while meta-chlorophenol has a pKa of 9.0 and para-chlorophenol is the weakest acid with a pKa of 9.4.

Is bromophenol more acidic than phenol?

O-cresol, m- cresol, p-cresol, o- fluorophenol, o- chlorophenol, o-bromophenol. Given halophenols are more acidic than phenol.

Why is fluorophenol weakest acid?

Amongst o-halophenols,o-Flurophenol is the weakest acid due to strong intramolecular H-bonding. The acidity of other halophenols decreases as the -Ieffect of the halogen decreases.