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In an amino acid, the carboxyl group ion...

In an amino acid, the carboxyl group ionises at `pK_(a1) = 2.34` and ammonium ion at `pK_(a2) = 9.60`. The isoelectric point of the amino acid is at pH

A

5.97

B

2.34

C

9.6

D

697

Text Solution

Verified by Experts

The correct Answer is:
A
Isolectric point `=(pK_(alpha1))+(pK_(alpha2))/2`
`=(2.34+9.60)/2=11.94/2`
=5.97
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