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Which gas is released when copper chips are subjected to concentrated nitric acid?
- a)Nitrogen (I) oxide
- b)Nitrogen (II) oxide
- c)Nitrogen (III) oxide
- d)Nitrogen (IV) oxide
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Which gas is released when copper chips are subjected to concentrated ...
Answer:
When copper chips are subjected to concentrated nitric acid, the gas released is nitrogen (IV) oxide, also known as nitrogen dioxide (NO2).
Explanation:
Reaction:
Copper (Cu) + Concentrated Nitric Acid (HNO3) → Copper Nitrate (Cu(NO3)2) + Nitric Oxide (NO) + Nitrogen Dioxide (NO2) + Water (H2O)
1. Oxidation of Copper:
In the presence of concentrated nitric acid, copper undergoes oxidation to form copper(II) ions. This reaction is facilitated by the nitrate ions from the nitric acid.
Cu(s) + 4HNO3(aq) → Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)
2. Formation of Nitric Oxide:
One of the products of the reaction between copper and concentrated nitric acid is nitric oxide (NO). Nitric oxide is formed by the reduction of nitric acid by copper.
3Cu(s) + 8HNO3(aq) → 3Cu(NO3)2(aq) + 2NO(g) + 4H2O(l)
3. Formation of Nitrogen Dioxide:
Nitric oxide is further oxidized to nitrogen dioxide (NO2) by reacting with the oxygen in the air.
2NO(g) + O2(g) → 2NO2(g)
Therefore, when copper chips are subjected to concentrated nitric acid, the gas released is a mixture of nitric oxide (NO) and nitrogen dioxide (NO2), with nitrogen dioxide being the predominant gas. Nitrogen dioxide is a reddish-brown gas with a pungent odor.
Summary:
- When copper chips are treated with concentrated nitric acid, nitrogen (IV) oxide, or nitrogen dioxide (NO2), is released.
- This gas is formed through the oxidation of copper to copper(II) ions and the subsequent reduction of nitric acid to nitric oxide (NO).
- Nitric oxide is further oxidized to nitrogen dioxide (NO2) by reacting with oxygen in the air.
When copper chips are subjected to concentrated nitric acid, the gas released is nitrogen (IV) oxide, also known as nitrogen dioxide (NO2).
Explanation:
Reaction:
Copper (Cu) + Concentrated Nitric Acid (HNO3) → Copper Nitrate (Cu(NO3)2) + Nitric Oxide (NO) + Nitrogen Dioxide (NO2) + Water (H2O)
1. Oxidation of Copper:
In the presence of concentrated nitric acid, copper undergoes oxidation to form copper(II) ions. This reaction is facilitated by the nitrate ions from the nitric acid.
Cu(s) + 4HNO3(aq) → Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l)
2. Formation of Nitric Oxide:
One of the products of the reaction between copper and concentrated nitric acid is nitric oxide (NO). Nitric oxide is formed by the reduction of nitric acid by copper.
3Cu(s) + 8HNO3(aq) → 3Cu(NO3)2(aq) + 2NO(g) + 4H2O(l)
3. Formation of Nitrogen Dioxide:
Nitric oxide is further oxidized to nitrogen dioxide (NO2) by reacting with the oxygen in the air.
2NO(g) + O2(g) → 2NO2(g)
Therefore, when copper chips are subjected to concentrated nitric acid, the gas released is a mixture of nitric oxide (NO) and nitrogen dioxide (NO2), with nitrogen dioxide being the predominant gas. Nitrogen dioxide is a reddish-brown gas with a pungent odor.
Summary:
- When copper chips are treated with concentrated nitric acid, nitrogen (IV) oxide, or nitrogen dioxide (NO2), is released.
- This gas is formed through the oxidation of copper to copper(II) ions and the subsequent reduction of nitric acid to nitric oxide (NO).
- Nitric oxide is further oxidized to nitrogen dioxide (NO2) by reacting with oxygen in the air.
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Community Answer
Which gas is released when copper chips are subjected to concentrated ...
Treating copper chips with concentrated nitric acid releases toxic brown gas, NO2, nitrogen (IV) oxide. It is a reddish-brown gas with pungent odor.
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Which gas is released when copper chips are subjected to concentrated nitric acid?a)Nitrogen (I) oxideb)Nitrogen (II) oxidec)Nitrogen (III) oxided)Nitrogen (IV) oxideCorrect answer is option 'D'. Can you explain this answer?
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