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HgCI2 reacts with excess of KI to give a...

`HgCI_2` reacts with excess of KI to give a red precipitate A which becomes soluble in excess of KI to form compound B. A and B are respectively

A

`Hgl_2 & K_2[Hgl_4]`

B

`Hgl_2 & Hg_2l_2`

C

`Hgl & K[Hgl_3]`

D

`Hgl & K[Hgl_4]`

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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. Compound (B) is

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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. (A) on dissociation in H_(2)SO_(4) gives:

(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. Compound (A) contains ... ions.

(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. Compound (D) is

(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. Compound (D) is

(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:

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