Carbon on reaction with hot conc. \( H_2SO_4 \), gives two oxides along with \( H_2O \). What is the nature of these two oxides?
Both are amphoteric
Step 1: Identifying the Oxides Formed
When carbon reacts with hot concentrated sulfuric acid (\( H_2SO_4 \)), it undergoes oxidation and produces carbon dioxide (\( CO_2 \)) and carbon monoxide (\( CO \)) along with water: \[ C + H_2SO_4 \rightarrow CO + CO_2 + H_2O + SO_2 \] Step 2: Understanding the Nature of the Oxides
- Carbon dioxide (\( CO_2 \)): A well-known acidic oxide because it dissolves in water to form carbonic acid (\( H_2CO_3 \)). \[ CO_2 + H_2O \rightarrow H_2CO_3 \] - Carbon monoxide (\( CO \)): Though it does not react with water to form an acid, it is still classified as a neutral oxide. However, in some reactions, it can behave slightly acidic under specific conditions.
Since one oxide is strongly acidic and the other is mildly acidic/neutral, the best classification is that both are acidic.
Step 3: Evaluating the Given Options
- Option (1): Correct, as both oxides exhibit acidic behavior.
- Option (2): Incorrect, as neither \( CO_2 \) nor \( CO \) is a basic oxide.
- Option (3): Incorrect, as \( CO_2 \) is not neutral.
- Option (4): Incorrect, as neither oxide shows significant amphoteric behavior.
Thus, the correct answer is
Option (1).
The products formed in the following reaction, A and B, are:
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