Q29 / 180 · KCET 2011 · Chemistry

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
  • Correct answer
    D
    $\mathrm{NaNO}_{2}$ and $\mathrm{NaNO}_{3}$

Solution

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 $\stackrel{\text { discharge }}{\longrightarrow} 2 \mathrm{NO}$ $2 \mathrm{NO}+\mathrm{O}_{2} \longrightarrow 2 \mathrm{NO}_{2}(g)$ $2 \mathrm{NO}_{2}+2 \mathrm{NaOH} \longrightarrow \mathrm{NaNO}_{2}+\mathrm{NaNO}_{3}+\mathrm{H}_{2} \mathrm{O}$

Hence, the correct answer is option: 'D'.

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