An orange solid (X) on heating,gives a colour | vedclass

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(A) The thermal decomposition of ammonium dichromate $(NH_4)_2Cr_2O_7$ is given by the reaction: $(NH_4)_2Cr_2O_7 \rightarrow N_2 + Cr_2O_3 + 4H_2O$.

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$Mg_3N_2$

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(A) The thermal decomposition of ammonium dichromate $(NH_4)_2Cr_2O_7$ is given by the reaction: $(NH_4)_2Cr_2O_7 \rightarrow N_2 + Cr_2O_3 + 4H_2O$. Here,the orange solid $(X)$ is $(NH_4)_2Cr_2O_7$,the colourless gas $(Y)$ is $N_2$,and the green residue $(Z)$ is $Cr_2O_3$. When the gas $(Y)$,which is $N_2$,reacts with magnesium $(Mg)$,it forms magnesium nitride: $3Mg + N_2 \rightarrow Mg_3N_2$. Magnesium nitride $(Mg_3N_2)$ is a white solid substance.

An orange solid $(X)$ on heating,gives a colourless gas $(Y)$ and a green residue $(Z).$ Gas $(Y)$ on treatment with $Mg,$ produces a white solid substance. Identify the white solid substance.

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