Chemistry, asked by Anonymous, 1 year ago

Compare acidic trend:-
m-fluorophenol............. m-chlorophenol
With appropriate reason...

Answers

Answered by AR17
1
Heya user !!

Here's the answer you are looking for.

In both, m-fluorophenol & m-chlorophenol, resonance comes into play but since it is in meta position it has no effect in deciding the acidic character.

In m-fluorophenol, fluorine is present which is more deactivating, that means more electron withdrawing. So, the electron density in m-fluorophenol decreases.

Whereas, in m-chlorophenol, chlorine is less deactivating than fluorine, so the electron density decreases but not as m-fluorophenol.


Therefore, m-fluorophenol is more acidic.


★★ HOPE THAT HELPS ☺️ ★★
Attachments:
AR17: But according to theory, acidic character is directly proportional to –I effect.
Anonymous: But u have to see all other aspects na like resonance and hyperconjugation which r dominating over inductive effect
AR17: The functional group is in meta position, resonance will have no effect on acidic character
Anonymous: Dear we can not change experimental results do we have to state any appropriate reason . Yaa hydrogen bonding can be a reason bcoz lone pair of cl an f are directed towards hydrogen
AR17: Hydrogen bond is not possible here
Anonymous: I know that ur ans is this only but if u ask it's genuine reason , it is H- bonding only bcoz consider the big big lone pair on chlorine and fluorine. Ya meta H bonding can be taken by on our own bcoz it is absurd too . But the reality
AR17: You cant change the theory just to make the experimental results same as theoretical ones
AR17: H bonding is possible when the electron donating group is present in the ortho position
Anonymous: Okay sure u r Right then give me reason
Anonymous: Any reason
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