Find iso-electric point of given amino a...

Find iso-electric point of given amino acid
`CH_3 - underset(o+)underset(NH_3)underset(|)(CH ) - CO_2H" " pK_a = 2.2`
`pK_b = 4.4`

A

3.3

B

5.9

C

9.6

D

11.8

Verified by Experts

The correct Answer is:

B

`I.P. = (pK_(a_1) + pK_(a_2))/2 so ((14.0 - 4.4) + 2.2)/2 = 11.8/2 = 5.9`

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