Chemistry
Assertion (A): Carbon monoxide is an extremely poisonous gas.
Reason (R): The gas is formed due to incomplete combustion of carbon.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Carbon
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Answer
Both A and R are true but R is not the correct explanation of A.
Explanation — Carbon monoxide is an extremely poisonous gas because carbon monoxide combines with the haemoglobin present in the red blood cells of our body to form a stable compound called carboxyhaemoglobin. This stable compound does not allow haemoglobin to absorb or carry oxygen, thus depriving our body cells of oxygen. This causes paralysis of the respiratory organs and results in death due to suffocation (asphyxiation).
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