RESULT - effervescence (fizzes), carbon dioxide produced (test with limewater).
CHLORIDE Cl- (in solution)
TEST- acidify solution with dilute nitric acid, then add
aqueous silver nitrate
RESULT- white ppt of silver chloride formed: ppt soluble in ammonia
solution
BROMIDE Br- (in
solution)
TEST- acidify solution with dilute nitic acid, then add
aqueous silver nitrate
RESULT- cream ppt of silver bromide formed: only slightly soluble in
ammonia solution
IODIDE I- (In solution)
TEST- acidify solution with dilute nitric acid, then add aqueous silver
nitrate
RESULT- yellow ppt of silver iodide formed: insoluble in ammonia solution
NITRATE N03- (In solution
TEST- make solution alkaline with sodium hydroxide solution, then add aluminium
foil ( or Devarda's alloy) and warm carefully
RESULT- ammonia gas given off (test with moist red litmus)
SULFATE SO4 2- (In solution)
TEST- acidify solution with dilute hydrochloric acid, then add barium chloride solution
OR acidify solution with dilute nitric acid, then add barium nitrate solution.
RESULT- white ppt of barium sulfate formed for both tests