Question

pls answer with explaination! ​

Answer 1

Solution:-option2)

1>2>3

Reason:-

The elecrenegativity of I, Br and F is in the order

F>Br>I

so first compound,can attract more electrons ,Than second one and second can attract more electrons than third one

Answer 2

If I remember it correctly, answer will be 2>3>1

why, you may ask..

well we all know that negative inductive effect or the -i etfect order is as follows -F > -Cl > -Br > -I.

negative inductive effect increases acidity

so the order should have been 1 >2>3

but, halogens also have a positive resonance effect or mesomeric effect (+R or +M) also.

that is also -F > -Cl > -Br > -I. positive resonance effect decreases the acidic strength.

Inductive effect dominates here.

both -I effect and +R effect of Fluorine in high so they cancelnout each other giving parafluorophenol acid strength almost same as phenol (but greater than phenol)

I hope you have understood fam

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