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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

`9.60`

D

6.97

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The correct Answer is:
A
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