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Which of the following will be the main group when present in a compound together?

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in Chemistry – Class 12 by (188k points)
Which of the following will be the main group when present in a compound together?

(a) -CHO

(b) -CO

(c) -OH

(d) -Cl

The question was asked by my school principal while I was bunking the class.

Enquiry is from Nomenclature and Structure of Carbonyl Groups topic in portion Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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The correct answer is (a) -CHO

Explanation: If a compound contains both aldehyde and ketone groups, then the former is considered as the principal functional group, and the ketone is regarded as substituent. Thus, it is named as a derivative of alkanal.

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