Identifying Negative Ions Quiz

What gas is released when carbonate ions react with acids?

• Oxygen

• Hydrogen

• Carbon dioxide

• Nitrogen

Which ion forms a white precipitate with barium chloride?

• Chloride

• Nitrate

• Ammonium

• Sulfate

How can you distinguish between sulfate and carbonate ions after adding barium chloride?

• Add nitric or hydrochloric acid

• Add silver nitrate

• Add water

• Add sodium hydroxide

What reagent is used to test for chloride ions?

• Barium chloride

• Silver nitrate

• Sodium hydroxide

• Aluminum powder

What happens to silver chloride when nitric acid is added?

• It dissolves

• It forms a gas

• It remains unchanged

• It turns blue

Which test involves the use of aluminum powder?

• Sodium hydroxide test

• Brown ring test

• Lime water test

• Silver nitrate test

What is the visual indicator of a positive Brown ring test for nitrates?

• A blue ring

• A colorless solution

• A brown ring

• A white precipitate

Which ion does not react with acids to produce a gas?

• Carbonate

• Sulfate

• Nitrate

• Chloride

What is the result of adding silver nitrate to a chloride solution?

• A white precipitate

• A brown ring

• A colorless solution

• A blue precipitate

Which ion forms a white precipitate with both barium and silver reagents?

• Carbonate

• Nitrate

• Chloride

• Sulfate