Chemistry 9701 · AS & A Level · The Periodic Table: chemical periodicity

The Periodic Table: chemical periodicity — practice question

Sodium and sulfur are each burned separately in oxygen. Each reaction produces a flame with a different colour. Which row gives the correct answer?

  • ANa + O$_2$: white; S + O$_2$: blue
  • BNa + O$_2$: white; S + O$_2$: yellow
  • CNa + O$_2$: yellow; S + O$_2$: blue
  • DNa + O$_2$: yellow; S + O$_2$: yellow

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