The IUPAC name of the given compound is

Hexanoic acid

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Hexanal

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Hexanone

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Hexanol

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Solution

The correct option is B
Hexanal

Let us begin by numbering the longest chain. According to the IUPAC rules of nomenclature the longest chain should be considered as the main chain. No matter which outer carbon we start with, the longest chain is 6 carbons long.

The given compound contains -CHO functional group. It belongs to the family of aldehydes. The IUPAC name of aldehydes ends with 'al'. It is written in the format Alkane - e + al. The alkane is hexane. Therefore the IUPAC name of the given compound is Hexanal.

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