A yellow solution of a salt yields a reddish brown precipitate with caustic soda solution.The precipitate does not dissolve in excess of the alkali. The reddish brown precipitate on strong heating leaves behind a red powder, insoluble in water but soluble in dilute HCI.
ldentify the metal of the salt.

A yellow solution of a salt yields a reddish brown precipitate with caustic soda solution.The precipitate does not dissolve in excess of the alkali. The reddish brown precipitate on strong heating leaves behind a red powder, insoluble in water but soluble in dilute HCI. Write the equation of the reaction involved.

Ammonium hydroxide will produce a reddish brown precipitate when added to a solution of :

A metal salt solution gives a yellow precipitate with silver nitrate.The precipitate dissolves in dilute nitric acid as well as in dilute ammonia solution.The solution contains :

Reddish brown (chocolate) precipitate is formed by mixing solutions containing:

A colourless solution of a salt yields a white precipitate with dropwise addition of caustic alkali, which however. dissolves in excess of the alkali. The salt is a (a) zinc salt, (b) aluminium salt, (c) either a zinc salt or an aluminium salt, (d) none of (a) or (b).

A metal salt solution gives raddish brown precipitate with ammonium hydroxide hydroxide and deep red solouration with ammonium thiocyanate reagent. The metal ion is :

A solution of a salt in water, on addition of dilute HCI, gives a white precipitate, which is soluble in hot water. The salt contains

Identify the cations in each of the following case : NaOH solution when added to the Solution (A) gives a reddish brown precipitate

Identify the cation in each of the following case Sodium hydroxide solution when added to the solution 'A' gives reddish brown precipitate.

A white solid P, on strong heating, decomposes to give reddish brown gas R and a residue Q. The residue R is yellow when hot and white when cold. The solution of white solid P in water gives white precipitate S, with concentrated sodium hydroxide. The white precipitate S dissolves in excess of sodium hydroxide solution to form colourless solution. Another sample of the solid P in water is mixed with ferrous sulphate solution and then to this solution are added a few drops of conc. sulphuric acid. A brown ring is formed at the junction of liquids. Answer the following questions: Name the salt formed when S dissolves in excess of sodium hydroxide.