CO is more toxic than $C O_{2}$ because:

It affects the nervous system.

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It damages lungs.

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It reduces the oxygen carrying capacity of haemoglobin.

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It forms acid with water.

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Solution

The correct option is C It reduces the oxygen carrying capacity of haemoglobin.
Carbon dioxide is normally not a polluting gas and is required for the normal process of photosynthesis. Higher concentration of carbon dioxide however lead to green house effect and global warming. Carbon monoxide combines with haemoglobin and produces carboxyhaemoglobin. It reduces oxygen carrying capacity of blood.

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Similar questions

The compound which forms a poisonous complex with haemoglobin and reduces the oxygen carrying capacity of haemoglobin is:

Q. The disease which reduces the oxygen carrying capacity of the blood and affects blood supply to various organs

The poisonous gas which reduces the oxygen-carrying capacity of blood to a large extent is:
(a) $S O_{2}$
(b) $N O$
(c) $C O$
(d) $C O_{2}$

Which of the following are correct with respect to carbon monoxide?
(i) It is released due to incomplete combustion of fuels.
(ii) It does not affect humans.
(iii) It is a toxic gas.
(iv) It reduces oxygen-carrying capacity of the blood.
(v) It is released from vehicles.

Q. Which of the following gases combines with haemoglobin to form carboxyhaemoglobin and reduces the oxygen carrying capacity of blood?

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CO is more toxic than CO2 because:

CO is more toxic than $C O_{2}$ because: