Which of the two : O_(2)NCH_(2)CH_(2)O^(-) or CH_(3)CH_(2)O^(-) is expected to be more stable and why?

Which of the two : O_(2)NCH_(2)CH_(2)O^(-) or CH_(3)CH_(2)O^(-) is exp

1.	Which of the two : O_(2)NCH_(2)CH_(2)O^(-) or CH_(3)CH_(2)O^(-) is expected to be more stable and why?
Answer» Solution :In these `O_(2)NCH_(2)CH_(2)O^(-)` is more stable because, (a) RESONANCE stability: `O_(2)NCH_(2)CH_(2)O^(-)` MEANS Its resonance structure are as under (b) Stability by INDUCTIVE effect: [NEGATIVE charge of `O^(-)` is transfer by the `-I` effect of `-NO_(2)`] [The transfer of `O^(-)` is decrease by the +I effect of `CH_(3)` and the stability decrease]