MCQ
${(N{H_4})_2}C{r_2}{O_7}$ on heating liberates a gas. The same gas will be obtained by
  • Heating $N{H_4}N{O_2}$
  • B
    Heating $N{H_4}N{O_3}$
  • C
    Treating ${H_2}{O_2}$ with $NaN{O_2}$
  • D
    Treating $M{g_3}{N_2}$ with ${H_2}O$

Answer

Correct option: A.
Heating $N{H_4}N{O_2}$
a
(a) ${(N{H_4})_2}C{r_2}{O_7}\xrightarrow{\Delta }{N_2} \uparrow  + C{r_2}{O_3} + 4{H_2}O$

$N{H_4}N{O_2}\xrightarrow{\Delta }{N_2} \uparrow  + 2{H_2}O$

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