Statement - I :At isoelectric point, the amino group does not migrate under the influence of electric field
Statement - II :At isoelectric point, amino acid exists as a zwitter ion.

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Both statements I and II are correct

Statement-I is correct and statement-II is incorrect

Statement-I is incorrect and statement-II is correct

Both statements I and II are incorrect

answer is A.

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Detailed Solution

The isoelectronic point or isoionic point is the pH at which the amino acid does not migrate in an electric field. This means it is the pH at which the amino acid is neutral, i.e. the zwitterion form.

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