Question

Carbon monoxide, when inhaled, passes through the lungs into the blood. It combines with the hemoglobin of blood to form which complex substance

Answer 1

that complex is called carboxy haemoglobin..

Answer 2

Hemoglobin is contained in red blood cells, which efficiently carries oxygen from the lungs to the tissues of the body. Hemoglobin also helps in the transportation of carbon dioxide and hydrogen ions back to the lungs.