A mixture of two salts were treated as follows (i) The mixture was heated with MnO_(2) & conc H_(2)SO_(4). A yellowish green gas was liberated. (ii) The mixture on heating with NaOH solution gave a gas, which turned red litmus blue. (iii) The solution in water gas brown colouration with Kj_(3)Fe(CN)_(6) and red colouration with NH_(4)CNS. (iv) The mixture was boiled with KOH and the liberated gas was bubbled through an alkaline solution of K_(2HgIj_(4) to give brown precipitate. Identify the two salts. Give ionic equations for reactions involved in the test (i), (ii) & (iii).

A mixture of two salts were treated as follows (i) The mixture was he

1.	A mixture of two salts were treated as follows (i) The mixture was heated with MnO_(2) & conc H_(2)SO_(4). A yellowish green gas was liberated. (ii) The mixture on heating with NaOH solution gave a gas, which turned red litmus blue. (iii) The solution in water gas brown colouration with Kj_(3)Fe(CN)_(6) and red colouration with NH_(4)CNS. (iv) The mixture was boiled with KOH and the liberated gas was bubbled through an alkaline solution of K_(2HgIj_(4) to give brown precipitate. Identify the two salts. Give ionic equations for reactions involved in the test (i), (ii) & (iii).
Answer» Solution :`FeCl_(3) & NH_(4)Cl`