You visited us 1 times! Enjoying our articles? Unlock Full Access!

Resonance Effect

I. ⊖CH2-⊕CH-C...

Question

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

$C H_{2} = C H - C H = C H - O - C H_{3}$ has the following above resonating structures.

The correct order of stability of these resonating structures is:

I V > I I I > I I > I

No worries! We‘ve got your back. Try BYJU‘S free classes today!

I I I > I V > I I > I

No worries! We‘ve got your back. Try BYJU‘S free classes today!

I I I > I I > I > I V

No worries! We‘ve got your back. Try BYJU‘S free classes today!

I V > I > I I I > I I

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is C $I V > I > I I I > I I$
$I V > I > I I I > I I$
$C H_{2} = C H - ⊖ C H - C H = \oplus O - C H_{3} > ⊖ C H_{2} - \oplus C H - C H = C H - O - C H_{3}$
$I V$ $I$
$> C H_{2} = C H - ⊖ C H - \oplus C H - O - C H_{3} > ⊖ C H_{2} - C H = C H - \oplus C H - O - C H_{3}$
$I I I$ $I I$
The structure is unstable when opposite charges are present on adjacent atoms.
Structure having maximum number of covalent bonds is most stable. - $O C H_{3}$ exerts a $- I$ and $+ M$ effect.
Also in structure IV, octet of all atoms are complete but in others octet of one carbon is incomplete.

Suggest Corrections

Similar questions

{C H}_{3} - C H = {C H}_{2}

{C H}_{3} - C H = C H - {C H}_{3}

{C H}_{3} - C_{3} = C H - {C H}_{3}

{C H}_{3} - {C H}_{3} | C = {C H}_{3} | C - {C H}_{3}

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

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

I

I I

C H_{3} - C = ¨ N - O H

C H_{3} - C H = ¨ N - O H

I I I

I V

What are the hybridization states of each carbon atom(s) in the following molecules ?

(i) $C H_{3} * C H_{2} C H_{2} C H_{3}$

(ii) $C H_{2} = C^{*} H - C H = C H_{2}$

(iii) $C H_{3} * C H = C H - C H_{3}$

(iv) $H - * C \equiv C - H$

I - C H_{3} - * C H - C H_{3}

I I - C H_{3} - * C H - O C H_{3}

I I I - C H_{3} - * C H - C H_{2} - O C H_{3}

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

C H_{3} - N H - + C H_{2} and + C H_{2} - O H

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

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

Join BYJU'S Learning Program