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Which of the two structures (A) and (B) given below is more stabilised by resonance? Explain. CHX3COOH(A) and CHX3COOΘ(B) - Chemistry

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प्रश्न

Which of the two structures (A) and (B) given below is more stabilised by resonance? Explain.

\[\ce{\underset{(A)}{CH3COOH}}\] and \[\ce{\underset{(B)}{CH3CO\overset{Θ}{O}}}\] 

टीपा लिहा
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उत्तर

Resonating structures are as follows:

(A)
(B)

Structure 'B' is more stabilised as it does not involve charge separation.

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Fundamental Concepts in Organic Reaction Mechanism - Resonance Structure
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 12: Organic Chemistry Some Basic Principles and Techniques - Multiple Choice Questions (Type - I) [पृष्ठ १५२]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 11
पाठ 12 Organic Chemistry Some Basic Principles and Techniques
Multiple Choice Questions (Type - I) | Q 49 | पृष्ठ १५२

संबंधित प्रश्‍न

Draw the resonance structure for the following compound. Show the electron shift using curved-arrow notation.

C6H5OH 


Draw the resonance structure for the following compound. Show the electron shift using curved-arrow notation.

C6H5NO2 


Draw the resonance structure for the following compound. Show the electron shift using curved-arrow notation.

CH3CH = CHCHO


Draw the resonance structure for the following compound. Show the electron shift using curved-arrow notation.

C6H5 – CHO


Draw the resonance structure for the following compound. Show the electron shift using curved-arrow notation.

\[\ce{C6H5 - \overset{+}{C}H2}\]


In which of the following representations given below spatial arrangement of group/ atom different from that given in structure ‘A’?

(A)
(i)
(ii)
(iii)
(iv)

What is the hybridisation of each carbon in H2C = C = CH2.


The structure of triphenylmethyl cation is given below. This is very stable and some of its salts can be stored for months. Explain the cause of high stability of this cation.


Draw the resonance structure of the following compounds;

CH2 = CH – CH = CH2


Draw the resonance structure of the following compounds;

\[\begin{array}{cc}
\ce{CH2 = CH - C = O}\\
\phantom{.........}|\\
\phantom{.........}\ce{H}
\end{array}\]


Which of the following compounds will not exist as resonance hybrid. Give reason for your answer:


Resonance structures of propenal are given below. Which of these resonating structures is more stable? Give reason for your answer.

\[\ce{\underset{I}{CH2 = CH - CH = O} <-> \underset{II}{\overset{⊕}{C}H2 - CH = CH - \overset{Θ}{O}}}\]


Assertion (A): Energy of resonance hybrid is equal to the average of energies of all canonical forms.

Reason (R): Resonance hybrid cannot be presented by a single structure.


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