Independent final check
Explain without the key
explain
Final check
explain: give reasons and connect them to evidence.
A dilute salt solution has undergone simple distillation in this model. Describe water and salt in both the receiver and flask. Explain their different destinations.
Your saved work
Answers and earlier attempts stay in this browser. Export a copy to keep, to move to another device or to hand to your teacher. Importing a copy keeps your current answers and adds earlier attempts.
Scope and sources
Cambridge IGCSE Chemistry 0620 · 2026–2028 v2 · Original learning materials.
0620 12.4.1(d/e): simple and fractional distillation; bounded12.4.2 method selection. Nonvolatile salt solution and a hypothetical miscible non-azeotropic A/B mixture. No petroleum fractions, complete purity testing or quantitative equilibrium.
Apparatus, amounts and times in the experiment are illustrative. Real practical work follows a teacher-approved safety method.
Official Cambridge syllabus