Chemistry - Salt Analysis Question with Solution | TestHub

Identify $(X)$ and $(Y)$: The formation of a brown complex $(Y)$ with $FeS{O}_4$ and dilute $HCl$ indicates the brown ring test. Thus, $(X)$ is $NaN{O}_2$. The complex $(Y)$ is $[Fe(H_{2}O{)}_5(NO){]}^{2+}$, where Iron $(Fe)$ is in the +1 oxidation state.

Identify $(Z_1)$ and $(Z_2)$: $NaN{O}_2+HCl$ produces $HN{O}_2$.

Reaction with Ethylamine $(C_2{H}_{5}N{H}_2)$ yields Ethanol $(Z_1)$, which gives a positive iodoform test (yellow ppt) with $I_2/NaOH$.

Reaction with Aniline $(C_6{H}_{5}N{H}_2)$ at ice-cold temperature forms Benzene diazonium chloride $(Z_2)$, which produces a red dye with $\beta$-naphthol.

Evaluate Options: (A) $N{O}_2^{-}$ is a reducing agent. (B) Fe in $(Y)$ is +1, so B is incorrect. (C) and (D) are correct based on the tests above.