Q72 / 180 · JIPMER 2016 · Chemistry

Duma's method involves the determination of nitrogen content in the organic compound in the form of

  • A
    $\mathrm{NH}_3$
  • Correct answer
    B
    $\mathrm{N}_2$
  • C
    NaCN
  • D
    $\left(\mathrm{NH}_4\right)_2 \mathrm{SO}_4$

Solution

Duma's method involves the determination of nitrogen content in the organic compound in the form of $\mathrm{N}_2$ $\mathrm{N}_2 \mathrm{O}+\mathrm{Cu} \longrightarrow \mathrm{N}_2+\mathrm{CuO}$ $\% N=\frac{28}{22400} \times \frac{\text { volume of } \mathrm{N}_2 \text { at NTP }}{\text { weight of compound } \times 100}$

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

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