please give reason with answer
In 2, Resonance stablizes it and also, +I due to Ethyl group.
In 1, Only Resonance.
strange 2 is most stable followed by 1 and 3 because in structure 1 and 2 there is a resonance while absent in structure 3.moreover carbonation in structure has more alphahydrogen(hyperconjugation) making it to be more stable than 1
okay there is conjugation in 1 and 2 but as resonance brings a positive charge on oxygen atom which is unstable, will reso actually takes place and should I count resonance as to stablize the molecule 1 and 2, This basically the doubt.
-m is dominating here in case of c=o not -i...
3>2>1 should be the answer.
Here resonance destabilises the positive charge(as + moves on oxygen)
3>2>1 because 3 has no + charge on oxygen and 2>1 because resonating structures and hyperconjugation fails but inductive effect tells that 2degree carbon is stable