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The C-O bond in carbonyls is polarised, and hence the carbonyl carbon and carbonyl oxygen act as _________ and ________ respectively.

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in Chemistry – Class 12 by (188k points)
The C-O bond in carbonyls is polarised, and hence the carbonyl carbon and carbonyl oxygen act as _________ and ________ respectively.

(a) electrophile; nucleophile

(b) nucleophile; electrophile

(c) Lewis base; Lewis acid

(d) electrophile; Lewis acid

This question was posed to me by my college professor while I was bunking the class.

My enquiry is from Nomenclature and Structure of Carbonyl Groups in division Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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Correct answer is (a) electrophile; nucleophile

Easiest explanation: The polarity of the C-O bond is due to the higher electronegativity of O than C. This means that oxygen is a nucleophilic centre and carbon is an electron seeking centre.

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