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 precipitate is obtained, which dissolves in excess of solution (A).
Identify (A) and give equations for reactions in (ii).

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).

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) .

When a KI solution is added to a metal nitrate, a black precipitate is produced which dissolves in an excess of KI to give an organge solution. The metal ion is:

When a KI solution is added to a metal nitrate, a black precipitate is produced which dissolves in an excess of KI to give an organge solution. The metal ion is:

To which of the following metal salt solution when solution of caustic soda is added, a precipitate is obtained which dissolves on adding excess of caustic soda solution?

An aqueous solution of a gas 'A ' gives the following reactions along with same observations: When the solution is boiled with H_(2)O_(2) , cooled and an aqueous solution of BaCl_(2) is added to the mixture, a white precipitate insoluble in dilute HCl is obtained.

Identify the cation in each of the following case Ammonium hydroxide solution when added to the solution gives bluish white precipitate which dissolves in excess to give deep blue solution.