A hydrated metallic salt(A), light green in colour on earful heating gives a white anhydrous residue(B). (B) is soluble in water and its aqueous solution reacts with No to give a dark brown compound (C). (B) gives a brown residue (D) and a mixture oftwo gases (E) and (F). The gaseous mixture when passed through an acidified KMnO_4solution dischanges the pink colour and when passed through acidified BaCl_2 solution gave a white precipitate. A may be

A hydrated metallic salt(A), light green in colour on earful heating g

1.	A hydrated metallic salt(A), light green in colour on earful heating gives a white anhydrous residue(B). (B) is soluble in water and its aqueous solution reacts with No to give a dark brown compound (C). (B) gives a brown residue (D) and a mixture oftwo gases (E) and (F). The gaseous mixture when passed through an acidified KMnO_4solution dischanges the pink colour and when passed through acidified BaCl_2 solution gave a white precipitate. A may be
Answer» `FeSO_4.7H_2O` `ZnSO_4. 7H_2O` `CuSO_4.5H_2O` `FeCl_3. H_2O` Solution :`underset("(A)")(FeSO_4). 7H_2O overset(DELTA) RARR underset("(B)")(FeSO_4)+ 7H_2O` Neutral `FesO_4` gives bown RING TEST `C= [Fe(H_2O)_5NO] SO_4` `FeSO_4 overset(Delta)rarr underset("(D)")(Fe_2O_3) + underset("(E)")(SO_2) + underset("(F)")(SO_3)`