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WorksheetsCHM 131 Lab 16 Testing for Cations and Anions
Total questions: 10
Worksheet time: 5mins
Silver nitrate and nitric acid are used to test for....
metals
noble gases
halogens
metal oxides
A white precipitate formed when an unknown solution is added to silver nitrate and nitric acid indicates the presence of which ion?
bromide
iodide
fluoride
chloride
A gas produced when hydrochloric acid is added to an unknown solution indicates the presence of....
suulfate
carbonate
phosphate
nitrate
If a precipitate remains when nitric acid is added to a white precipitate, it indicates the presence of...
sulfate
phosphate
nitrate
carbonate
If a yellow precipitate remains when ammonium molybdate is added to a solution, it indicates the presence of...
sulfate
phosphate
nitrate
carbonate
Potassium thiocyanate added to an orange-brown precipitate will form a blood red precipitate if which ion is present?
iron(II)
barium
lead
iron(III)
Which metal produces a brick red flame?
barium
calcium
sodium
potassium
Which metal produces a yellow flame?
barium
calcium
sodium
potassium
Which metal produces a purple flame?
barium
calcium
sodium
potassium
What was the salt in your unknown solution?
potassium sulfate
ammonium carbonate
potassium chloride
ammonium chloride
