An inorganic iodide (A) on heating gives gases (B) and (C). (B) is neutral towards litmus while (C) is acidic (B) gives back dense white fumes of (A) when cooled with (C). (A) functions as a strong acid in water. (C) is also obtained by action of (D) on water. (D) can be obtained when (B) reacts with I_(2) in presence of anhydrous CaCl_(2). (B) is poisonous, has smell of rotten fish and it is sparingly soluble in water. Now answer the following question What is true compound (D) ?

An inorganic iodide (A) on heating gives gases (B) and (C). (B) is neu

1.	An inorganic iodide (A) on heating gives gases (B) and (C). (B) is neutral towards litmus while (C) is acidic (B) gives back dense white fumes of (A) when cooled with (C). (A) functions as a strong acid in water. (C) is also obtained by action of (D) on water. (D) can be obtained when (B) reacts with I_(2) in presence of anhydrous CaCl_(2). (B) is poisonous, has smell of rotten fish and it is sparingly soluble in water. Now answer the following question What is true compound (D) ?
Answer» The oxidation number of CENTRAL atom of (D) is + IV Compound (D) produces a yellow precipitate with silver nitrate solution Compound (D) DISSOLVES in water forming an acid which with sodium HYDROXIDE forms three series of salts Both (B) and (C) ANSWER :D