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

The characteristic properties of acids and bases — practice question

What colours are observed when litmus and methyl orange are each added to separate samples of aqueous sodium hydroxide?

  • Alitmus: blue; methyl orange: orange
  • Blitmus: blue; methyl orange: yellow
  • Clitmus: purple; methyl orange: orange
  • Dlitmus: purple; methyl orange: yellow

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI