A certain compound `(X)` shows the following reactions.
(a) when `KI` is added to an aqueous suspention of `(X)` containing acetic acid, iodine is liberated.
(b) when `CO_(2)` is passed through an aqueous suspension of `(X)` the turbidity transforms to a precipitate. Identify `(X)`

A certain compound (X) shows the following reactions. (i)When Kl is added to an aqueous suspension of (X) containing dilute HCl, iodine is liberated. (ii)When the paste of (X) in water is heated with acetone, a product of anesthetic use is obtained. (iii)When CO_(2) is passed through an aqueous suspension of (X) the turbidity transforms to a precipitate. Identify (X) and write down chemical equations for the step (i),(ii) & (iii)

When H_(2)S is passed through an ammonium salt solution X, a white ppt is obtained .The X can be a

A black precipitate is obtained when H2S is passed through a dilute acidic (HCI) aqueous solution containing

A compound (X) imparts a golden yellow flame and shows the following reactions : (i) Zinc powder, when boiled with the concentrated aqueous solution of (X) dissolves and hydrogen, is evolved. (ii) When an aqueous solution of (X) is added to an aqueous solution of stannous chloride, a white precipitate is obtained first which dissolves in excess of solution of (X) Identify (X) .

A ceratin compound (A) imperts a golden yellow flame and exhibits following reactions: a. When a concentrated solution of (A) is boiled with Zn power, hydrogen gas is evolved. b. When an aqueous solution of (A) is added to an aqueous solution of stannous chloride precipitate is obtained, which dissolves in excess of solution (A). Identify (A) and give equations for reactions in (ii).

When H_(2)S gas a passed through an ammonical salt solution X, a slightly white precipitate is formed. The X can be:

What happen when: (a). CO_2 gas is passed through aqueous solution of Na_2CrO_4 . (b). Ammonium dichromate is heated strongly.

An inorganic compound (X) shows the following reactions : (a) It is white solid, exists as dimer and fumes in moist air. (b) It sublimes at 180^@ C and forms monomer on heating to 400^@ C . ( c) Its aqueous solution turns blue litmus red and gives a white precipitate with AgNO_(3) solution which is soluble in excess of NH_(4) OH . (d) Addition of NaOH to the solution of (A) gives a white gelatinous precipitate which is, however, soluble on excess of NaOH . Identify the compound (A) .

What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when H_(2)S (g) is passed through this solution?

An inorganic Lewis acid (X) shows the following reactions : (a) It fumes in moist air. (b) The intensity of fumes increase when a rod dippod in NH_(4) OH is brought near it. ( c) To an aqueous solution of (X) , addition of NH_(4)Cl and NH_(4)OH gives a precipitate which dissolves in NaOH solution. (d) An acidic solution of (X) does not give a precipitate with H_(2) S . Identify (X) and gives chemical reactions for (a) to (d) .