Single Choice

In which of the following compound, resonance is not possible:

A$$CH_2= CH \overset{\oplus }{ N}Me_3$$
Correct Answer
B$$CH_3 CH \overset{\oplus }{ N}Me_3$$
C$$CH_2-CH_2 \overset{\oplus }{ N}Me_3$$
D$$CH_2= CH \overset{\oplus }{ N}Me$$

Solution

In the molecule, $$CH_2= CH \overset{\oplus }{ N}Me_3$$ resonance is not possible. There is no lone pair of electrons on N atoms as all valence electrons on N atom are involved in bond formation.

SIMILAR QUESTIONS

Organic Chemistry

For 1-methoxy-1,3-butadiene, which of the following resonating structure is the least stable?

Organic Chemistry

Resonance structures can be written for:

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Which of the following molecules is least resonance stabilized?

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Which of the following conditions is not correct for resonating structures?

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A solid has a structure in which, atoms of W, O and Na are located respectively at the corners, centre of the edge and at the centre of the cubic lattice. Name the compound.

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Write the resonance structures of (1) $$ CH_3COO^{\ominus }$$ and (2) $$ CH_2=CH-CHO $$. Indicate the relative stability of the contributing structures.

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Explain why the following two structures (i) and (ii) cannot be the major contributors to the real structures of $$ CH_3COOCH_3 $$.

Organic Chemistry

Which of the following resonating strictures of l-methoxy 1, 3 -butadiene is least stable?

Organic Chemistry

Draw the resonance structures for $$CH_3CH = CH\overset{+}CH_2$$. Show the electron shift using curved-arrow notation.

Organic Chemistry

What is resonance effect ? What are its various types ? In what respects, does the resonance effect differ from inductive effect ?

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