In the following reaction sequence: Z(g) treated with Al/OH⁻ gives intermediate X (a salt). X treated with AgNO3 gives a white precipitate. X treated with Fe2+/H+ gives Y(g). Y(g) reacted with aqueous FeSO4 gives an unstable brown complex. Identify Y and Z.

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NO, NH3. Y is identified as NO because it forms an unstable brown complex with FeSO4 (the brown ring test for NO). Z is NH3, which under the described Al/OH⁻ conditions forms an ammonium salt X; X with Fe2+/H+ in acidic medium generates NO.

In the following reaction sequence: Z(g) treated with Al/OH⁻ gives intermediate X (a salt). X treated with AgNO3 gives a white precipitate. X treated with Fe2+/H+ gives Y(g). Y(g) reacted with aqueous FeSO4 gives an unstable brown complex. Identify Y and Z.

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