Why is chlorophenol more acidic than fluorophenol?

This happens because chlorine has extra vacant d-orbital for delocalisation of electrons which is not possible in fluorine atoms . Hence ,the conjugate base of p- chlorophenol is more stable and hence more acidic. -p-chlorophenol is more acidic than p-fluorophenol.

Which is more acidic M chlorophenol or fluorophenol?

m – chlorophenol is more acidic.

Why is M chlorophenol 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. Hence, M-chlorophenol is most acidic. So, the correct answer is “Option D”.

Why is chlorophenol more acidic than para chlorophenol?

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.

Why is chlorophenol more acidic than bromophenol?

Cl shows -I effect and withdraws negative charge from oxygen. Thus when phenoxide ion forms, its ortho chloro derivative is more stable compared to the other two. Hence, it is the most acidic out of the three.

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.

Why fluoro phenol is least acidic?

In the case of o-halophenols, or 2-halophenols, 2-fluorophenol is the least acidic because of intramolecular H-bonding between F group and H from the OH group, which is strongest because of higher electronegativity of fluorine.

Is M chlorophenol more acidic than benzyl alcohol?

In benzyl alcohol if the oxygen atom loses H+ then the negative charge formed on oxygen is not in resonance with benzene ring which is not the case with m – chlorophenol. Hence m – chlorophenol is more acidic.

Which of the phenol is most acidic?

p-nitro phenol
Hence, p-nitro phenol is most acidic among the given.

Which of the following is least acidic Fluorophenol chlorophenol?

Why is bromophenol more acidic than fluorophenol?

p-chlorophenol is more acidic than p-fluorophenol due to presence of vacant d orbitals.

Why is chlorophenol more acidic than nitrophenol?

p-chlorophenol or p-nitrophenol? Both the chlorine and the nitro group at the para position makes the phenol group acidic because they are both electron withdrawing groups that stabilize the negative charge of phenol. Thus, p-nitrophenol is more acidic than p-chlorophenol.

Is o-chlorophenol more acidic or basic than pfluoro phenol?

Thus, the conjugate base of p-chloro phenol is more stable and hence a weak base. So, p-chloro phenol is more acidic than p-fluoro phenol. Does O-chlorophenol show H bonding? Yes hydrogen bonding does occur in o-Chlorophenol. In this compound, the chlorine atom and the OH group are present on the adjacent carbon atoms of the benzene ring.

Which is more acidic ortho chlorophenol or meta-chlorophenol?

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. Why is chlorophenol more acidic than Fluorophenol?

Why is para fluorophenol acidic in nature?

In case of para fluorophenol, because of almost identical sizes of 2p-orbitals of Carbon and Fluorine , +R effect and -I effect of Fluorine almost balance each other and hence it is almost as acidic as phenol itself. What is the acidic strength order of o-cresol, p-cresol, m-cresol and phenol?

What is the effect of methyl groups on the acidity of phenol?

Methyl groups in methyl phenol has very little effect on the acidity of phenol whereas methoxy due to its electron donating effect destabilizes the resultant anion.