Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

The correct stability order of te following resonance structures is $ I:H_2C= N^+=\bar{N} ; \quad II:H_2C^+ - N=\bar{N} \quad ; III:H_2C - N^+=\bar{N} \quad ; IV:H_2 \bar{C}- N=N^+$

$ (a)\;I > II > IV >III \\ (b)\;I > III > II >IV \\ (c)\;II > I > III >IV \\ (d)\;III > I > IV >II $

Can you answer this question?

1 Answer

0 votes
(i) Number of $\pi$ bonds $\alpha$ Resonance energy $\alpha$ stability
(ii) Contributing structures should be such that negative charge resides on an electronegative element and positive charge resides o am electro positive element.
(iii) In contributing structures , like charges should not reside on atoms close to each other and unlike charges should be widely separated .
So, $I > III > II >IV$
Hence b is the correct answer
answered Feb 22, 2014 by meena.p

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App