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Question

The IUPAC name of β-ethoxy-α-hydroxy propanic acid is


A

1-Carboxy-2-hydroxyethanol

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B

1-Carboxy-2-ethoxy propane

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C

3-Ethoxy-2-hydroxypropanoic acid

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D

None of the above

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Solution

The correct option is C

3-Ethoxy-2-hydroxypropanoic acid


Firstly lets try to make the structure of the compound .

what is α and β?

α - carbon The first carbon which is attached to the functional group.

β - carbon The second carbon which is attached to the functional group.

Therefore, Because it is a propianic acid -COOH group.

Ethoxy OC2H5

Hydroxy OH



Now, parent chain and numbering

[Because COOH is higher in preference]

word root = prop

COOH group suffix oic acid

propanoic acid

Now,substituents are -OH at C2 and CH2OC2H5 at C3

Therefore,

3-Ethoxy -2-hydroxypropanoic acid


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