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Physical Properties of Boron Family

Arrange the f...

Question

Arrange the following resonating structure according to their contribution towards resonance hybrid?
(a) $C H_{2} = \oplus N = ⊖ N$ (b) $⊖ C H_{2} - N = \oplus N :$ (c) $\oplus C H_{2} - N . . = ⊖ N$ (d) $⊖ C H_{2} - \oplus N \equiv . . N$

a > d > c > b

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b > a > c > d

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a > c > b > d

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d > a > b > c

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Solution

The correct option is A a > d > c > b
The correct order of the contribution of resonating structure towards resonance hybrid is
$\displaystyle a (CH_2=\overset {\oplus}{N}=\overset {\ominus}{N}) > d (\overset {\ominus}{C}H_2-\overset {\oplus}{N}\equiv \overset {. .}{N}) > c (
\overset {\oplus}{C}H_2-\underset {. .}{N}=\overset {\ominus}{N}
) > b (\overset {\ominus}{C}H_2-N=\overset {\oplus}{N}:)$
a and d have higher contribution as they have less charge separation.
b and c have lower contribution as they have more charge separation.

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Similar questions

(a) {C H}_{2} = \oplus N = ⊝ N

(b) ⊝ C H_{2} - N = \oplus N

(c) \oplus C H_{2} - N = ⊝ N

(d) ⊝ C H_{2} - \oplus N \equiv ¨ N

W h i c h o f f o l l o w i n g r e p r e s e n t β - h y d r o x y b u t y r a t e - c o - β - h y d r o x y v a l a r a t e ?

+ C H_{2} - C H_{3}

+ C H_{2} - C H_{2} C l

+ C H_{2} - C H C l_{2}

+ C H_{2} - C C l_{3}

C H_{2} = C H - C \equiv N

N

C H_{3} - C H_{2} - C H_{2} - C H_{2} N H_{2}

(1^{o})

C H_{3} - C H_{2} - N H_{2} | C H - C H_{3}

(1^{o})

C H_{3} - C H_{3} | C H - C H_{2} - N H_{2}

(1^{o})

C H_{3} - C H_{3} | C | - C H_{3} N H_{2}

(1^{o})

C H_{3} - C H_{2} - C H_{2} - N H - C H_{3}

(2^{o})

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