The pH value of the solution in which a particular amino acid does not migrate under the influence of an electric field is called the:
A
Eutectic point
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B
Neutralisation point
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C
Effusion point
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D
Isoelectric point
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Solution
The correct option is C Isoelectric point 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 is dominant.