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COMEDK2018ChemistryBiomolecules

At pH =4 glycine exists as

Options

  1. AH ₃ + N - CH ₂- COO ⁻
  2. BH ₃ + N - CH ₂- COOH
  3. CH ₂ ~N - CH ₂- COOH
  4. DH ₂ ~N - CH ₂- COO ⁻

Correct answer

B. H ₃ + N - CH ₂- COOH

Step-by-step solution

At pH =4 , glycine reacts with H ⁺ ion as

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