Chemistry 0620 · IGCSE · Identification of ions and gases

Identification of ions and gases — practice question

Two separate tests were carried out on a white solid sample X. Test: dilute nitric acid is added Observation: fizzing occurs Test: aqueous sodium hydroxide is added and the mixture is warmed Observation: a gas is produced which turns damp red litmus paper blue What substance is X?

  • Aaluminium carbonate
  • Baluminium nitrate
  • Cammonium carbonate
  • Dammonium nitrate

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