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

The characteristic properties of acids and bases — practice question

Acid R and acid S solutions have the same concentration. Equal volumes of each acid, both at the same temperature, are reacted with equal masses of magnesium ribbon. The amount of hydrogen gas produced is measured. The findings are shown. Which statement about the reactions is correct?

  • AAcid S reacts faster than acid R.
  • BThe final volume of hydrogen produced in each reaction is different.
  • CAcid R is a stronger acid than acid S.
  • DAcid S is a stronger acid than acid R.

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