Chemistry
Grade-6
Easy
Question
A colorless gas that decreases the blood’s ability to carry oxygen is
- Nitrogen oxide
- Nitrogen dioxide
- Carbon dioxide
- Carbon monoxide
Hint:
The characteristics of the given gas are that it is a poisonous gas and when is when inhaled it combines with hemoglobin it forms carboxyhemoglobin.
The correct answer is: Carbon monoxide
A colorless gas that decreases the blood’s ability to carry oxygen is Carbon monoxide.
Carbon monoxide has a higher affinity to hemoglobin as compared to oxygen.
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