Copy and complete the following table: Compound Solubility in sodium Hydroxide Solubility in Ammonium Hydroxide Copper ( I I ) hydroxide Aluminium hydroxide Zinc hydroxide

Compound Solubility is sodium hydroxide Solubility in ammonium hydroxide Copper(II)hydroxide Insoluble Soluble Copper(II) hydroxide does not react with sodium hydroxide and form any salt hence it is insoluble in sodium hydroxide. But Copper(II) hydroxide reacts with ammonium hydroxide and forms a salt which is soluble. Compound Solubility is sodium hydroxide Solubility in ammonium hydroxide Aluminium hydroxide Soluble Insoluble Aluminium hydroxide is amphoteric in nature, it reacts with sodium hydroxide and forms a salt of sodium aluminate and water. Sodium aluminate is a soluble salt. It does not react with ammonium hydroxide hence remains insoluble. Compound Solubility is sodium hydroxide Solubility in ammonium hydroxide Zinc hydroxide Soluble Soluble When sodium hydroxide is added to zinc hydroxide, the precipitate of zinc hydroxide will dissolve, forming a colourless solution of zincate ion. Zinc hydroxide also dissolves in excess ammonium hydroxide to form a colourless, water-soluble ammine complex.

MEDIUM

Earn 100

What will be the products formed in the reaction of $Cr (III)$ ions with ammonium hydroxide.

Important Questions on Analytical Chemistry

HARD

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

The salt solution which does not react with ammonium hydroxide is:

EASY

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

The reagents

N H_{4} C l

and aqueous

N H_{3}

will precipitate

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

Write a chemical equation for the action of ammonium hydroxide on $Cr (III)$ ions.

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

The addition of an excess of ammonium chloride ammonia buffer to a solution containing nitrates of

Al, Bi, Mg

and

Zn

will precipitate hydroxides of

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

Copy and complete the following table:

Compound	Solubility in sodium Hydroxide	Solubility in Ammonium Hydroxide
Copper $(I I)$ hydroxide
Aluminium hydroxide
Zinc hydroxide

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

Write a balanced chemical equation for the following:

Ferrous sulphate reacts with ammonium hydroxide.

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

What happens when $Al (III)$ ions react with ammonium hydroxide in presence of ammonium chloride.

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

_____ salt solution on reacting with ammonium hydroxide solution gives a deep blue solution.

EASY

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

A compound is soluble in water. If ammonia is added, a red precipitate appears which is soluble in dilute

HCl

. The compound has

HARD

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

What do you observe when an ammonium salt is heated with caustic soda solution?

EASY

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

The colour of the precipitate formed in the reaction of

Cr (III)

ions with ammonium hydroxide in presence of ammonium chloride is

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

Write the chemical reaction and observation:
Ammonium hydroxide is added to ferric chloride solution?

MEDIUM

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

A chloride which forms a precipitate that is soluble in excess of ammonium hydroxide, is

EASY

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

A l^{3 +},

F e^{3 +},

Z n^{2 +}

and

N i^{2 +}

ions are present in an acidic solution. Excess of ammonium chloride solution is added followed by addition of ammonium hydroxide solution. The available precipitate will contain

EASY

Science>Chemistry>Analytical Chemistry>Action of Ammonium Hydroxide on Metallic Salt Solutions

What will be the colour of the precipitate formed when