Question

Which of the following reacts with haemoglobin in the blood to form carboxyhaemoglobin

• A. CO
• B. $CO_{2}$
• C. HCOOH
• D. $H_{2}CO_{3}$

Answer 1

Answer: (A)

CO

Answer 2

$Hb + CO \rightarrow HbCO$

carboxy haemoglobin it is 20 times more stable then oxyhaemoglobin.