See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

CH COOH (CH2)3 CH2 NH3 NH3    2  9   11 CH (CH2)3 CH2 NH3 NH3   - COO CH (CH2)3 CH2 NH3 NH2  - COO CH (CH2)3 CH2 NH2 NH2 - COO   zwitterion isoelectric 11 9 pK 10 2   