Question

Which of the two protons which two ch2o minus or ch3 ch2 or minus is expected to be more stable and why?

Answer 1

$\huge\boxed{Answer}$

O2NCH2CH2O- : Nitro group is an electron-withdrawing group which show -I effect, this effect allows the withdrawing of electrons towards it. Due to this withdrawing effect of -I, the negative charge on the nitro group decreases and it stabilised.

 

2) CH3CH2O- : Ethyl group is the electron donating group hence it will show + I effect. Due to this the negatively charge on the compound increases, thereby destabilising it.

 

Hence  O2NCH2CH2O- compound is more stable than  CH3CH2O-.