The correct IUPAC name of the following structure is :

3-nitroso-2-butanone

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2-nitroso-3-butanone

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3-nitro-2-butanone

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2-nitro-3-butanone

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Solution

The correct option is A 3-nitroso-2-butanone
Nomenclature :
Nitroso: $(- N O)$
Prefix : Nitroso

Ketone: $(>C=O)$
Prefix: -oxo, keto
Suffix : -one
Here Ketone is the principal functional group (or has higher priority) and gets a lower number/locant as shown

The IUPAC name is 3-nitroso-2-butanone
or 3-nitrosobutan-2-one

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Similar questions

Draw the structure for the following compounds: [3 MARKS]
(i) Cyclohexane (ii) Hexanal (iii) Butanone

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