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Environmental Chemistry — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryEnvironmental Chemistry2 Marks
Question
Why is CO more toxic than $\mathrm{CO}_2$?
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Answer

Carbon monoxide reacts with haemoglobin to form carboxy -haemoglobin which does not act as oxygen carrier, therefore, it is more harmful than $\mathrm{CO}_2$.

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