A compound (A) is greenish crystalline salt, which gave the following results. i) Addition of BaCl_(2) solution to the solution of (A) results in the formation of white ppt. (B). which is insoluble in dil HCL ii) On heating (A), water vapours and two oxides of sulphur, (C) and (D) are liberated leaving a red brown residue (E) iii) (E) dissolves in warm conc. HCI to give a yellow solution (F). iv) With H2S the solution (F) yields a pale yellow ppt. (G) which when filtered, leaves a greenish filtrate (H). v) Solution (F) on treatment with thiocynaate ions gives blood red coloured compound (I). Compound (A) is

A compound (A) is greenish crystalline salt, which gave the following

1.	A compound (A) is greenish crystalline salt, which gave the following results. i) Addition of BaCl_(2) solution to the solution of (A) results in the formation of white ppt. (B). which is insoluble in dil HCL ii) On heating (A), water vapours and two oxides of sulphur, (C) and (D) are liberated leaving a red brown residue (E) iii) (E) dissolves in warm conc. HCI to give a yellow solution (F). iv) With H2S the solution (F) yields a pale yellow ppt. (G) which when filtered, leaves a greenish filtrate (H). v) Solution (F) on treatment with thiocynaate ions gives blood red coloured compound (I). Compound (A) is
Answer» `CuSO_(4)` `MnSO_(4)` `FeSO_(4)` `Na_(2)SO_(4)` Solution :`FeSO_(4), xH_(2)O` greenish colour `CuSO_(4), 5H_(2)O` blue colour, `MnSO_(4). xH_(2)O` light PINC `Na_(2)SO_(4)` COLOURLESS