Advertisements
Advertisements
प्रश्न
Draw the possible resonance structures for \[\ce{CH3 - \overset{\bullet\bullet}{\underset{\bullet\bullet}{O}} - \overset{+}{C}H2}\] and predict which of the structures is more stable. Give reason for your answer.
Advertisements
उत्तर
The resonating structures can be drawn as-
 |
\[\ce{CH3 - \overset{+}{\underset{\bullet\bullet}{O}} = CH2}\] |
| (I) | (II) |
In structure I, CH2 group has the positive charge which means octet is not completed, but in structure II, both the carbon atoms and oxygen atom have complete octet hence, more stable.
APPEARS IN
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.
C6H5 – CHO
Draw the resonance structure for the following compound. Show the electron shift using curved-arrow notation.
\[\ce{CH3CH = CH\overset{+}{C}H2}\]
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.
Show the polarisation of carbon-magnesium bond in the following structure.
CH3 – CH2 – CH2 – CH2 – Mg – X
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:
Which of the two structures (A) and (B) given below is more stabilised by resonance? Explain.
\[\ce{\underset{(A)}{CH3COOH}}\] and \[\ce{\underset{(B)}{CH3CO\overset{Θ}{O}}}\]
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.
