- Home
- Digital lab
- JEE chemistry
JEE chemistry, for the parts you cannot picture
Most JEE chemistry loss is not recall, it is spatial and mechanistic: which way the electrons go, what shape the molecule takes, how a rate curve bends when you change one thing. These simulations exist for those questions. They are a visual aid alongside your coaching material, not a replacement for it.
Open the digital labTopic by topic
Pick the topic you keep losing marks on and run it until the pattern is obvious. Every lab is free and opens in a browser tab.
The labs in full
17 experiments matter for this syllabus. Each opens on its own page and is free to use.
Concentration and rate
One variable at a time, and the gradient does the talking.
Open the lab → IGCSE · Class 10-12Rate of reaction
Acid and metal at five concentrations, timed, with the gas collected.
Open the lab → CBSE Class 10Electrolysis of water
Guided steps, ions you can watch move, and the 2:1 gas ratio built in front of you.
Open the lab → IGCSE 0620/0971 · CBSEMolten lead bromide
Melt it, switch on, and watch lead form at one electrode and bromine at the other.
Open the lab → Class 10 · JEEChlor-alkali process
Brine electrolysis in a membrane cell, all three products traced.
Open the lab → IGCSE · IB · CBSEPeriodic table explorer
Group and period trends element by element, plus a trends quiz.
Open the lab → All levels3D molecular lab
Bond angles, hybridisation, VSEPR shape and polarity for any molecule.
Open the lab → IGCSE · Class 9-11Build an atom
Drag protons, neutrons and electrons in and watch the element, mass number and charge follow.
Open the lab → IGCSE · Class 9-12Rutherford gold foil experiment
Fire alpha particles at gold foil in 3D and count the flashes yourself.
Open the lab → IGCSE 0620/0971 · Physics 0625 · CBSECathode ray experiment
Pump the tube down, switch the EHT on, then bend the beam with plates and coils, or spin a paddle wheel with it.
Open the lab → CBSE XII · IGCSECation and anion tests
Salt analysis at a real reagent shelf, one test at a time.
Open the lab → IGCSE · Class 10Tests for gases
Six gases against every reagent, then Mystery mode for an unknown.
Open the lab → IGCSE · Class 10-12Fractional distillation
A 3D refinery column you can turn, splitting crude oil into its eight fractions.
Open the lab → Class 9 · IGCSEStates of matter
Turn the burner up and watch the particle picture change with it.
Open the lab → IGCSE · Class 10Metals with water and steam
Caesium down to calcium in the trough, magnesium to iron on the steam rig.
Open the lab → CBSE Class 10Thermite reaction
Aluminium reduces iron(III) oxide and the temperature runs away past 2000 C.
Open the lab → CBSE Class 10Double displacement
Two salt solutions, one precipitate, and the spectator ions named.
Open the lab →Common questions
Is this a JEE course?
No. It is a set of free visual tools for specific topics. There is no question bank, no test series and no syllabus coverage claim here. Use it when a topic will not sit still in your head, and keep your regular material for practice and mocks.
Which topics does it actually help with?
The ones where a diagram in a book is not enough: kinetics curves, electrode reactions, periodic trends and molecular geometry. Organic mechanisms are only partly covered - the 3D molecular lab helps with shape, hybridisation and polarity, but not with reaction mechanisms.
Does the 3D molecular lab handle any molecule?
It builds molecules you draw, and it can pull real structures from PubChem, so most molecules you meet in JEE are available. It reports bond angles, hybridisation, VSEPR shape, dipole moment and molar mass.
Is it free?
Yes, all of it, with no account.
Studying something else?
The same labs, grouped for a different syllabus.