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Organic And Biological Chemistry

7th Edition
STOKER + 1 other
ISBN: 9781305081079

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Chapter
Section
BuyFindarrow_forward

Organic And Biological Chemistry

7th Edition
STOKER + 1 other
ISBN: 9781305081079
Textbook Problem

A hemiacetal is a compound in which

  1. a. a hydroxyl group and an alkoxy group are attached to the same carbon atom
  2. b. a hydroxyl group and an alkoxy group are attached to adjacent carbon atoms
  3. c. two alkoxy groups are attached to the same carbon atom
  4. d. no correct response

Interpretation Introduction

Interpretation:

What is a hemiacetal compound has to be chosen from the given options.

Concept Introduction:

Aldehydes contain a carbonyl group that is bonded to a hydrogen atom and a carbon atom.  Ketones are compounds that contain a carbonyl group bonded to two carbon atoms.  Aldehydes and ketones undergo addition reaction across the carbonyl group.

Aldehydes and ketones react with alcohol to form hemiacetal as the product.  This reacts with further molecule of aldehyde or ketone to form acetal.

Explanation

Reason for correct option:

Hemiacetal is a addition product that is obtained by reaction between aldehyde or ketone with alcohol.  The general reaction of hemiacetal formation can be given as,

From the above general structure of hemiacetal it is found that it is an organic compound that contains a carbon atom that is bonded to an alkoxy group and a hydroxyl group.

Therefore, the correct option is option (a)...

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