Based on the information given below, the isoelectric point (pI) of lysine is ____. (Round off to one decimal… · ABC26OR0825
Subject: Organic Chemistry · Chapter: Natural Products · Topic: Natural Products & – General · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Medium
Based on the information given below, the isoelectric point (pI) of lysine is ____ . (Round off to one decimal place) 
Answer
Answer (as printed): 9.8
The options are missing from the source scan for this question, so there is nothing here for this letter to point at. The letter is what the book printed.
Explanation
Answer: 9.8 — The neutral zwitterion lies between pKa 9.1 and 10.5: pI = (9.1 + 10.5)/2 = 9.8.
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