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The correct order of stabilities of the ...

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`.

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
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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

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 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 .

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 increasing order of pK_b value of the following is : (I) HC -= C^(Ө) H^(Ө) overset (Ө) NH_2 (IV) C overset (Ө) H_3 .

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)"):}