Acids

Why C6H5COOH is less acidic than HCOOH, but more acidic than CH3COOH?

11 Answers

13
Двҥїяuρ now in medical c ·

Hey..... any one plz......

33
Abhishek Priyam ·

Because HCOOH is more acidic than CH3COOH

But don' know how PhCOOH comes in between them

13
Двҥїяuρ now in medical c ·

Why does PhCOOH come in between them??......i want to know exactly that

1
skygirl ·

1
skygirl ·

* if R is donating then acid weaker...

because... the conjugate base will be weaker...

33
Abhishek Priyam ·

Sahi hi lag raha hai..

But Resonance must increase more e- than +I and Hyper..

As in CH3-CH2+ and Ph-CH2+

But the order is correct ...

here I think Ph stops delocalisation of - charge on -C=O
|
O-
Due to cross conjugation..

1
skygirl ·

yeh cross-conjugation ka kya chakkar hai ??

i jus thot, here there are one effect n in methyl grp there are two effects ...

33
Abhishek Priyam ·

Let tit be..

But what about CH3-CH2+ and Ph-CH2+

33
Abhishek Priyam ·

And for cross conj :D

a very handy tool of teacher to explain any exception :D

cross conj, steric effect one of d most powerful tool 4 them [6]

3
msp ·

sp2 hybridised carbon is more basic than that of the sp3 hybridised carbon so the cpd C6H5COOH is more basic than that of CH3COOH

1
skygirl ·

yeah abhisekh .. u are r8..

kuchh na ho toh...... steric hindrance :P :P

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