Home
Class 11
CHEMISTRY
Give the stability of the following reso...

Give the stability of the following resonance structures
(a) `H_(2)C = overset(o+)N =overset(Θ)N`
(b) `H_(2)overset(o+)C -N =overset(Θ)N`
(c ) `H_(2)overset(Θ)C -overset(o+)N -= N`
(d) `H_(2) overset(Θ)C - N = overset(o+)N` .

A

`(i) gt (ii) gt (iv) gt (iii)`

B

`(i) gt (iii) gt (ii) gt (iv)`

C

`(ii) gt (i) gt (iii) gt (iv)`

D

`(iii) gt (i) gt (iv) gt (ii)`

Text Solution

Verified by Experts

The correct Answer is:
B
Structure `(i)` is the most stable as all of the atoms have completed their octets and negative charge is carried by the more electronegative `N` atom. Next is structure`(iii)` it also has complete octet for every atom but carries negative. Charge on less electronegative `C` atom. Third is structure `(ii)`, octet of `C` is not complete but carries negative charge on more electronegtative `N` atom the least stable is structure `(iv)` as the cotet of `N` is incomplete and carries positive charge on the more electronegative `N` atom.
Promotional Banner

Topper's Solved these Questions

  • GENERAL ORGANIC CHEMISTRY

    R SHARMA|Exercise Archives|36 Videos

  • GENERAL ORGANIC CHEMISTRY

    R SHARMA|Exercise Level - III|6 Videos

  • EQUILIBRIUM

    R SHARMA|Exercise ARCHIVES|69 Videos

  • ISOMERISM

    R SHARMA|Exercise Archives|11 Videos

Similar Questions

Explore conceptually related problems

Give the stability of the following resonance structures (a) H_(2)C = overset(o+)N =overset(Θ) (b) H_(2)overset(o+)C -N =overset(Θ)N (c ) H_(2)overset(Θ)C -overset(o+)N -= N (d) H_(2) overset(Θ)C - N = overset(o+)N .

The correct stability order of the following resonance structures is (I)H_(2)C = overset(+)N = overset(-)N" "(II)H_(2)overset(+)C - N = overset(-)N (III)H_(2)overset(-)C - overset(+)N = N" "(IV)H_(2)overset(-)C - N = overset(+)N

The correct order of stabilities of the following resonance structures is : (I) H_2 C = overset (oplus) N = overset (Ө) N (II) H_2 overset (oplus) C - N = overset (Ө) N (III) H_2 overset (Ө) C - overset (oplus) N -= N (IV) H_2 overset (Ө) C - N = overset (oplus) N .

The correct stability order of the following resonance structures is : x H_(2)C=overset(o+)underset((I))N=overset(Ɵ)N H_(2)overset(o+)Cunderset((II))-N=overset(Ɵ)N H_(2)overset(Ɵ)C-underset((III))overset(o+)N-=N H_(2)overset(Ɵ)C-underset((IV))N=overset(o+)N

The correct stability order of the following resonance structrue is : H_2 C = overset (+)(N) = overline(N) H_2 overset (+)C = (N) = overline(N) H_2overline( C) - overset (+) (N) -= N H_2overline( C) - overset (+) (N) -= N .

Write the stability order of conjugate structures: (c)overset(o+" ")(CH)_(2) - overset(.)N = underset(Ө)overset(..)N (d) overset(Ө" ")(CH)_(2) - overset(..)N = overset(" "o+)overset(..)N

The correct stability order of the following resonance structure is: {:(CH_(2)=C=O,H_(2)overset(-)(C)-overset(+)(C)=O,H_(2)O=overset(+)(C)-overset(-)(O) , H_(2)overset(-)(C)-C-=O),((I),(II),(III),"(IV)"):}