The IUPAC name of $C H_{3} - O H | C H - C H_{2} - C H_{3} | C H - C H O$ :

4-hydroxy -2- methyl pentanal

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2-hydroxy -4- methyl pentanal

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4-hydroxy-2-methyl pentanol

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2-hydroxy-4- methyl pentanol

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Solution

The correct option is A 4-hydroxy -2- methyl pentanal

In the given compound, the parent chain contains five carbons and two substituents are known as methyl and hydroxy. Two functional groups $- C H O$ and $- O H$ are attached to the compound but the priority will be given to $- C H O$ group.

Numbering will start from $- C H O$ group. Methyl will get number 2 and hydroxy will get number 4.

Therefore, the IUPAC name is 4-hydroxy-2-methylpentanal.

So, the correct option is $A$

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Similar questions

The IUPAC name of CH₂=CHCHOH-CH₂CHO is:

C H_{3} - C H_{3} | C H - O H | C H - C H_{2} - C O O H

The correct bondline structure of 4-hydroxy -4-methyl pentan-2-one is

C H_{3} - C H B r - C H_{2} O H

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