Chemistry 0620 · IGCSE · The characteristic properties of acids and bases

The characteristic properties of acids and bases — practice question

Zinc oxide is an amphoteric oxide. Zinc oxide is added to an excess of dilute hydrochloric acid. Zinc oxide is added to an excess of aqueous sodium hydroxide. Which row gives the observations for these reactions?

  • Acolourless solution forms; colourless solution forms
  • Bcolourless solution forms; no visible change
  • Cfizzing; colourless solution forms
  • Dfizzing; no visible change

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