14.3. Carbon monoxide gas is more dangerous than carbon dioxide gas. Why?
14.3. Carbon monoxide gas is more dangerous than carbon dioxide gas. Why?
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1 Answer
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Carbon monoxide binds to haemoglobin to form carboxyhaemoglobin, which is about 300 times more stable than the oxygen-haemoglobin complex. In blood, when the concentration of carboxyhaemoglobin reaches about 3–4 per cent, the oxygen-carrying capacity of blood is greatly reduced. This oxygen deficiency results into headache, weak eyesight, nervousness and cardiovascular disorder. This is the reason why people are advised not to smoke. In pregnant women who have the habit of smoking the increased CO level in blood may induce premature birth, spontaneous abortions and deformed babies. On the other hand, CO2 does not combine with ha
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