Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): -halocarboxylic acid on reaction with dil. gives good yield of -amino carboxyl

Question

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): -halocarboxylic acid on reaction with dil.  gives good yield of -amino carboxylic acid whereas the yield of amines is very low when prepared from alkyl halides.
Reason (R): Amino acids exist in zwitter ion form in aqueous medium.
In the light of the above statements, choose the correct answer from the options given below:

Canvas Classes · Accepted Answer

When alkyl halides react with ammonia, the primary amine formed is a good nucleophile and reacts further to form secondary, tertiary, and quaternary ammonium salts, leading to a low yield of the primary amine. However, when an -haloacid reacts with ammonia, the resulting -amino acid quickly forms a zwitterion (). In this form, the lone pair on the nitrogen is protonated and cannot act as a nucleophile for further alkylation. Thus, polyalkylation is prevented, and a good yield of the -amino acid

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