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Question
State the main sources and effects of carbon monoxide.
Solution
Carbon monoxide is formed by incomplete combustion of fuels in homes, factories and automobiles.
Effects of carbon monoxide are as follows:
It is a highly poisonous gas.
It reduces the oxygen-carrying capacity of blood by an amount equivalent to the amount of haemoglobin converted to carboxyhaemoglobin.
Haemoglobin + CO → Carboxyhaemoglobin
Because heart and brain are the two tissues most sensitive to oxygen depletion, they show the most serious effects of carbon monoxide exposure.
In high concentrations, carbon monoxide may kill by paralysing normal brain action.
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