Tests For Gases Flashcards
What is the test and observations for CO2
Pass through limewater
Limewater changes form colourless to milky
What is the test and observations for H2
Put a lighted splint into a sample of the gas
Burns with a pop
What are the test and observations for O2
Put a glowing splint into a sample of the gas
Splint relights
What is the test and the observations for Cl2
Damp litmus paper or damp universal indicator paper
Bleaches
What is the test and observations for NH3
Damp universal indicator - turns blue
Or
Apply a glass rod dipped in concentrated HCl - dense white fumes
What are the tests and observations for HCl
Damp universal indicator paper - turns red
Or
Apply a glass rod dipped in concentrated ammonia solution - dense white fumes