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Resonance Effect

Which will be...

Question

Which will be the least stable resonating structure?

C H_{2} = C H - \oplus C H - ⊖ C H - N H_{2}

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⊖ C H_{2} - \oplus C H - C H = C H - N H_{2}

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⊖ C H_{2} - C H = C H - C H = \oplus N H_{2}

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C H_{2} = C H - ⊖ C H - C H = \oplus N H_{2}

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Solution

The correct option is C $C H_{2} = C H - \oplus C H - ⊖ C H - N H_{2}$
Structure (A) is the least stable resonating structure because in this structure the negative charge is present on the carbon atom attached $- N H_{2}$ group which is electron donating in nature which will destabilize the molecule.

Suggest Corrections

Similar questions

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

C H_{2} = C H - . . O . . - C H_{3}

C H_{2} = C H - . . O . . - C H = C H_{2}

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

C H_{2} = C H - C H = C H - \oplus N H_{3}

\oplus C H_{2} - C H = C H - ⊖ C H - \oplus N H_{3}

\oplus C H_{2} - C H = C H - C H = N H_{3}

I . ⊖ C H_{2} - \oplus C H - C H = C H - O - C H_{3}

I I . ⊖ C H_{2} - C H = C H - \oplus C H - O - C H_{3}

I I I . C H_{2} = C H - ⊖ C H - \oplus C H - O - C H_{3}

I V . C H_{2} = C H - ⊖ C H - C H = \oplus O - C H_{3}

C H_{2} = C H - C H = C H - O - C H_{3}

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

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

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

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

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