Assertion: Carbon monoxide when inhaled for longer duration causes death.Reasoning: Carbon monoxide combines with haemoglobin.Both Assertion (A) and reasoning (R) are correct and R is the correct explanation of A.Both Assertion (A) and reasoning (R) are correct and but R is not the correct explanation of A.Assertion (A) is true but Reasoning (R) is not correct.Assertion (A) is not true but Reasoning (R) is correct.
Question
Assertion: Carbon monoxide when inhaled for longer duration causes death.Reasoning: Carbon monoxide combines with haemoglobin.Both Assertion (A) and reasoning (R) are correct and R is the correct explanation of A.Both Assertion (A) and reasoning (R) are correct and but R is not the correct explanation of A.Assertion (A) is true but Reasoning (R) is not correct.Assertion (A) is not true but Reasoning (R) is correct.
Solution
Both Assertion (A) and reasoning (R) are correct and R is the correct explanation of A.
Explanation: The assertion is correct because carbon monoxide (CO) is a poisonous gas that can be deadly when inhaled for a prolonged period. The reasoning is also correct and explains the assertion well. When we breathe in air, oxygen binds to a molecule called haemoglobin in our red blood cells, which then carries the oxygen around our body. However, carbon monoxide can also bind to haemoglobin, forming a compound called carboxyhaemoglobin. Unfortunately, carbon monoxide binds to haemoglobin much more strongly than oxygen does, meaning that if there is a lot of carbon monoxide in the air, it can effectively 'push off' the oxygen and take its place. This can lead to a lack of oxygen in the body, which can cause cells and tissues to die, leading to serious symptoms and even death.
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