Physiology The haemoglobin derivative that is formed due to reaction of CO2 with blood is A Carbaminohemoglobin B Carboxyhemoglobin C Methemoglobin D Reduced haemoglobin 💡 Explanation The haemoglobin derivative that is formed due to reaction of CO2 with blood is ✓ Correct Answer: A. Carbaminohemoglobin