Chemistry 0620 · IGCSE · Identification of ions and gases

Identification of ions and gases — practice question

The outcomes from two tests carried out on substance G are shown below. • A flame test gives a yellow-coloured flame. • Substance G is added to aqueous sodium hydroxide and powdered aluminium, then warmed carefully. A gas is released that turns damp red litmus paper blue. What is substance G?

  • Apotassium chloride
  • Bpotassium nitrate
  • Csodium chloride
  • Dsodium nitrate

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