If pK1 = 2.34 and pK2 = 9.60, then the isoelectric point pI is

1.	If pK₁ = 2.34 and pK₂ = 9.60, then the isoelectric point pI is
A.	5.87
B.	5.97
C.	3.67
D.	11.94
Answer» C. 3.67

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