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CBSE Class 11-science Answered

which is expected to more stable : O2NCH2 CH2O^- or CH3CH2O^- and why
Asked by gganga | 13 Apr, 2018, 04:48: PM
answered-by-expert Expert Answer
1) 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-.
Answered by Ramandeep | 13 Apr, 2018, 06:42: PM
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