Chemistry 0620 · IGCSE · Identification of ions and gases

Identification of ions and gases — practice question

Two different white solids are heated, and the gases produced are tested. The gas from solid 1 turns moist red litmus paper blue. The gas from solid 2 relights a glowing splint. Which row shows the gases produced from each solid?

  • Asolid 1: ammonia; solid 2: hydrogen
  • Bsolid 1: ammonia; solid 2: oxygen
  • Csolid 1: chlorine; solid 2: hydrogen
  • Dsolid 1: chlorine; solid 2: oxygen

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