Chemistry - Complete Pblock- Question with Solution | TestHub

$\text{Zn}{({\text{ClO}}_3)}_2\stackrel{\text{Δ}}{\to }{\text{ZnCl}}_2+3{\text{O}}_2$
${\mathrm{K}}_2\mathrm{C}{\mathrm{r}}_2{\mathrm{O}}_6\stackrel{\mathrm{\Delta }}{\to }2{\mathrm{K}}_2\mathrm{C}\mathrm{r}{\mathrm{O}}_4+\mathrm{C}\mathrm{r}{\mathrm{O}}_3+\frac{3}{2}{\mathrm{O}}_2$
$2\mathrm{K}\mathrm{C}\mathrm{l}{\mathrm{O}}_3\to 2\mathrm{K}\mathrm{C}\mathrm{l}+3{\mathrm{O}}_2$
${({\text{NH}}_4)}_2{\text{Cr}}_2{\text{O}}_7\stackrel{\text{Δ}}{\to }{\text{N}}_2+{\text{Cr}}_2{\text{O}}_3+2{\text{H}}_2\text{O}$
Hence only ammonium dichromate does not give oxygen on heating but gives${\mathrm{N}}_2$.