Resonance structure of benzaldehyde resonance structure of benzaldehyde
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Answer:
Explanation:
Answer :
Resonance structure : It is defined as when more than one Lewis structure can be drawn, the molecule or ion is said to have resonance.
Resonance is the concept where electrons (bonds) are delocalized over three or more atoms which cannot be depicted with one simple Lewis structure.
(i) Aniline is an aromatic amine in which the group is directly attached to hybridized carbon of benzene ring. group is an electron donating group.
An aromatic amine such as aniline exhibits a resonance effect due to which the lone pair on nitrogen participates in delocalization with electrons of benzene ring system and is less available to be shared with other species. The negative charge will delocalized on -ortho and -para position.
(ii) Phenol is an aromatic alcohol in which the group is directly attached to hybridized carbon of benzene ring. group is an electron donating group.
Similarly, in case of phenol the lone pair on oxygen participates in delocalization with electrons of benzene ring system and the negative charge will delocalized on -ortho and -para position.
(iii)Benzaldehyde is an aromatic aldehyde in which the group is directly attached to hybridized carbon of benzene ring. group is an electron withdrawing group.
In case of benzaldehyde, group is an electron withdrawing group due to this the partial negative charge creates on an oxygen atom and partial positive charge on carbon atom. This partial positive charge on carbon will withdraw the electron density of benzene ring towards itself and due to which positive charge will get delocalized on -ortho and -para position.
The resonating structure of (i) Phenol (ii) Benzaldehyde (iii) Aniline are shown below.
Explanation:
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