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(i) An aqueous solution of a white coloured compound `(A)` on reaction with `HCl` gives a white precipitate of compound `(B)`. (ii) `(B)` becomes soluble in chlorine water with the formation of `(C)` (iii) `(C)` reacts with `KI` to give a precipitate which becomes solube in excess of it forming a compount `(D)`. the compound `(D)` is used for detecting ammonium salts. (iv) `(B)` and `(C)` both, on treatement with `SnCl_(2)` give a grey precipitate of `(E)`. (v) When conc. `H_(2)SO_(4)` is added slowly into a mixture of cold solutions of `(A)` and `FeSO_(4)` is added slowly into a mixture of cold solutions of `(A)` and `FeSO_(4)`, a brown ring of compound `(F)` is formed. The oxidation number of `FE` in compound `(F)` is:A. `+1`B. `+2`C. `+3`D. zero |
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Answer» No in iron complex has oxidation no. `+1` `:. Fe` in `feSO_(4).NO` is in +1 |
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