Experimental Chemistry — Interactive Lab
A virtual separation-techniques bench based on the O-Level Experimental Chemistry topic. Drag, tilt and click the apparatus like the real thing — then check the notes to see the chemistry behind each step.
Solid + liquid
Filtration
Fold the paper, load the funnel, tilt the beaker and collect the filtrate.
Solution
Simple Distillation
Boiling chips, counter-current cooling, pure water from salt water.
Miscible liquids
Fractional Distillation
Beads, a 78 °C plateau, and a receiver swap you mustn't miss.
Immiscible liquids
Separating Funnel
Drain the bottom layer and stop right at the boundary.
Solid + solid
Sublimation
Warm gently, catch the purple vapour on a cold flask.
Dyes & inks
Paper Chromatography
Two strips, two run times — and the same Rf every time.
Test yourself
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Question Bank
Fifteen past-year Paper 1 multiple-choice questions covering every technique. Choose an answer, confirm, and see it marked instantly.