Keto acid has to be chosen from the given acids. Concept Introduction: Carbonyl groups are the one which contain a double bond between carbon and oxygen atom. Aldehydes and ketones possess this carbonyl functional group in it. The structural representation of a carbonyl group can be given as shown below, If a hydroxyl group is attached to a carbonyl group means it is known as carboxyl group. This can be represented as shown below, Apart from carboxyl group, there can be other functional group also that is present in the carboxylic acid . They are known as polyfunctional carboxylic acids. These occur naturally also. Some of the important type of polyfunctional carboxylic acids are hydroxy acids, keto acids, and unsaturated acids.

Question

Consider the reaction of a propanoate ester with hydroxide ion shown below. A series of four alcohol leaving groups were tested to determine which would be the best leaving group. Based on the pKa values of the alcohols, predict which alcohol would produce the fastest hydrolysis reaction. HO FOR A Alcohol I, pKa =16.0 B Alcohol II, pKa =10.0 C Alcohol III, pKa = 7.2 + ROH D Alcohol IV, pKa = 6.6

Answer 1

Question

Chapter 16.4, Problem 2QQ

Interpretation Introduction

Interpretation:

Keto acid has to be chosen from the given acids.

Concept Introduction:

Carbonyl groups are the one which contain a double bond between carbon and oxygen atom. Aldehydes and ketones possess this carbonyl functional group in it. The structural representation of a carbonyl group can be given as shown below,

If a hydroxyl group is attached to a carbonyl group means it is known as carboxyl group. This can be represented as shown below,

Apart from carboxyl group, there can be other functional group also that is present in the carboxylic acid. They are known as polyfunctional carboxylic acids. These occur naturally also. Some of the important type of polyfunctional carboxylic acids are hydroxy acids, keto acids, and unsaturated acids.

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