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

The characteristic properties of acids and bases — practice question

When magnesium ribbon is exposed to air, its surface forms magnesium oxide. Which statement explains why dilute hydrochloric acid can remove this magnesium oxide layer?

  • AMagnesium is a base.
  • BMagnesium ribbon reacts with hydrochloric acid.
  • CMagnesium oxide is a base.
  • DMagnesium oxide is an acid.

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