Chemistry 0620 · IGCSE · Identification of ions and gases

Identification of ions and gases — practice question

A student performs a flame test on a sample. The flame appears light green. Which ion is present in the sample?

  • A$\text{Ba}^{2+}$
  • B$\text{Ca}^{2+}$
  • C$\text{Li}^+$
  • D$\text{K}^+$

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