KCET · Chemistry · p Block Elements (Group 15, 16, 17 & 18)
In Ramsay and Rayleigh's isolation of noble gases from air, the nitrogen of the air is finally converted into
- A \(\mathrm{NaNO}_{2}\) only
- B \(\mathrm{NO}\) and \(\mathrm{NO}_{2}\)
- C \(\mathrm{NaNO}_{3}\) only
- D \(\mathrm{NaNO}_{2}\) and \(\mathrm{NaNO}_{3}\)
Answer & Solution
Correct Answer
(D) \(\mathrm{NaNO}_{2}\) and \(\mathrm{NaNO}_{3}\)
Step-by-step Solution
Detailed explanation
In Ramsay and Rayleigh's isolation of noble gases from air, the nitrogen of the air finally converted into \(\mathrm{NaNO}_{2}\) and \(\mathrm{NaNO}_{3}\).
Electric
\(\stackrel{\text { discharge }}{\longrightarrow} 2 \mathrm{NO}\)
\(2 \mathrm{NO}+\mathrm{O}_{2} \longrightarrow 2 \mathrm{NO}_{2}(g)\)
\(2 \mathrm{NO}_{2}+2 \mathrm{NaOH} \longrightarrow \mathrm{NaNO}_{2}+\mathrm{NaNO}_{3}+\mathrm{H}_{2} \mathrm{O}\)
Electric
\(\stackrel{\text { discharge }}{\longrightarrow} 2 \mathrm{NO}\)
\(2 \mathrm{NO}+\mathrm{O}_{2} \longrightarrow 2 \mathrm{NO}_{2}(g)\)
\(2 \mathrm{NO}_{2}+2 \mathrm{NaOH} \longrightarrow \mathrm{NaNO}_{2}+\mathrm{NaNO}_{3}+\mathrm{H}_{2} \mathrm{O}\)
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