Identify the correct statement regarding CO_______________?
Correct answer: B. it reacts with red blood cells of haemoglobin
- A. it combines with H2O to form carbonic acid
- B. it reacts with red blood cells of haemoglobin
- C. it is powerful oxidizing agent
- D. it is used to prepare aerated drinks
Explanation
Carbon monoxide binds strongly with haemoglobin to form carboxyhaemoglobin, reducing the blood's ability to carry oxygen. Students often choose a because they confuse CO with CO2, which dissolves in water to form carbonic acid; CO instead reacts with steam to form CO2 and H2.
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About Reactions of Group IV Elements
Group IV, or Group 14, chemistry covers the trends from carbon and silicon to tin and lead, including their reactions with oxygen, halogens, water, acids and alkalis. It also examines the structures and properties of their oxides and chlorides, oxidation states, and the inert pair effect, rather than treating all members as equally metallic.
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