Studied by 7 people
ammonia (NH3)
turns damp, red litmus paper blue
carbon dioxide (CO2)
Turns limewater milky
Chlorine (Cl2) gas
bleaches damp litmus paper
hydrogen (H2)
'pops' with a lighted splint
oxygen (O2)
Relights a glowing splint
Sulfur Dioxide (SO2)
turns acidified aqueous potassium manganate(VII) from purple to colourless
carbonate (CO3 2-) - add dilute acid
effervescence, carbon dioxide produced
chloride (Cl-) - acidify with dilute nitric acid, then add aqueous silver nitrate
white ppt.
bromide (Br-) - acidify with dilute nitric acid, then add aqueuous silver nitrate
cream ppt.
iodide (I-) - acidify with dilute nitric acid, then add aqueuous silver nitrate
yellow ppt.
nitrate (NO3-) - add aqueous sodium hydroxide, then aluminium foil; warm carefully
ammonia produced
sulfate (SO4 2-) - acidify, then add aqeuous barium nitrate
white ppt.
sulfite (SO3 2-) - add dilute hydrochloric acid, warm grently and test for the presence of sulfur dioxide
sulfur dioxide produced will turn acidified aqeuous potassium manganate(VII) from purple to colourless
