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  • If  the pH of a solution is 3.5, then where will the amino acid in the solution migrate under the application of electric field?  Given, Isoelectric point of the

If  the pH of a solution is 3.5, then where will the amino acid in the solution migrate under the application of electric field? 

Given, Isoelectric point of the amine is 4.5

Option: 1

Cathode


Option: 2

Anode


Option: 3

Bottom of solution


Option: 4

Top of solution


Answers (1)

best_answer

As we have learnt, 

Isoelectric point  is the pH at which a molecule has equal number of positive and negative charge and does not migrate under the influence of the electric field.

Since pH is below the isoelectric point, the cationic form of the amino acid will predominate and hence upon application of electric field, the amino acid will migrate to the cathode.

Hence, the correct answer is Option (1)

Posted by

Rishabh

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