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Question: Answered & Verified by Expert
Lysine is least soluble in water in the $\mathrm{pH}$ range
ChemistryBiomoleculesAIIMSAIIMS 2015
Options:
  • A 3 to 4
  • B 5 to 6
  • C 6 to 7
  • D 9 to 10
Solution:
1766 Upvotes Verified Answer
The correct answer is: 9 to 10
An amino acid has lowest solubility at its isoelectric point $(\mathrm{pH}$ at which the amino acid carries no charge) and the isoelectric point of lysine is 9.7.

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