GROUP III ANIONS

Question 1

are those ions whose calcium and barium salts are soluble but whose cadmium salts are insoluble in neutral or slightly basic solutions.

Answer 1

Group III anions

Question 2

Soluble in group III anions

Answer 2

calcium and barium salts

Question 3

Group III anions that are insoluble in neutral or slightly basic solutions.

Answer 3

cadmium salts

Question 4

Precipitated by cadmium ions

Answer 4

sulfide, ferrocyanide and ferricyanide ions

Question 5

The test for the sulfide depends upon the formation of a

Answer 5

metallic sulfide

Question 6

The sulfide is converted to ____ which maybe detected by its action on lead acetate paper to produce black lead sulfide.

Answer 6

H2S - Hydrogen Sulfide

Question 7

The tests for ferricyanide and ferrocyanide ions depend upon the ____ precipitates formed with the ferric and ferrous ions.

Answer 7

blue

Question 8

Precipitates of Ferric and Ferrous ions are called

Answer 8

Prussian blue and Turnbull’s blue.

Question 9

True or False: No separation is involved in the analysis of group III anions

Answer 9

True