Chemical test

What colour precipitate do chloride ions produce?

• White

• Cream

• Yellow

• Green

What colour do sodium ions go in a flame test?

• Red

• Yellow

• Brick-red

• Lilac

Which two solutions are added to test for the presence of halide ions?

• Silver chloride and nitric acid

• Barium chloride and hydrochloric acid

• Silver nitrate and nitric acid

• Barium chloride and sulphuric acid

What is the test for oxygen gas?

• Lit splint goes out with a squeaky pop

• Damp blue litmus paper goes red

• Damp red litmus paper goes red

• Glowing splint relights

What colour precipitate to iodide ions form?

• White

• Cream

• Yellow

• Green

What is the test for carbon dioxide gas?

• Limewater turns cloudy

• Damp blue litmus turns red

• A glowing splint relights

• A lit splint goes out with a squeaky pop

What is the test for chlorine gas?

• Damp blue litmus paper turns red and is bleached white

• A glowing splint relights

• Limewater will turn cloudy

What colour precipitate to bromide ions form?

• White

• Cream

• Yellow

• Green

What colour precipitate does barium sulphate form?

• White

• Green

• Yellow

• Cream

A squeaky-pop when a gas is lit shows the presence of which gas?

• Oxygen
• Hydrogen
• Chlorine
• Carbon Dioxide
• Helium