Aqueous solution of sodium carbonate absorbs NO and NO2 to give [1996]...
Aqueous solution of sodium carbonate absorbs NO and NO2 to give NaNO2 and CO.
Explanation:
- Sodium carbonate (Na2CO3) is a basic compound and can react with acidic gases like NO (nitric oxide) and NO2 (nitrogen dioxide) to form corresponding salts.
- The reaction between Na2CO3 and NO can be represented as follows:
2Na2CO3 + 2NO -> 2NaNO2 + CO2 + O2
- In this reaction, two molecules of sodium carbonate react with two molecules of nitric oxide to produce two molecules of sodium nitrite (NaNO2), one molecule of carbon dioxide (CO2), and one molecule of oxygen gas (O2).
- Similarly, the reaction between Na2CO3 and NO2 can be represented as follows:
Na2CO3 + 2NO2 -> 2NaNO2 + CO2
- In this reaction, one molecule of sodium carbonate reacts with two molecules of nitrogen dioxide to produce two molecules of sodium nitrite and one molecule of carbon dioxide.
- Therefore, when sodium carbonate reacts with a mixture of NO and NO2 gases, it forms sodium nitrite (NaNO2) and carbon dioxide (CO).
Conclusion:
The correct answer is option 'C' which states that the aqueous solution of sodium carbonate absorbs NO and NO2 to give NaNO2 and CO.