CBSE Class 10 chemistry experiments, run online

The chemistry half of Class 10 Science turns on four chapters and the practicals that go with them. Each simulator below matches one of those chapters, gives you the observation the way the record book wants it, and explains what is actually happening in the flask.

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Topic by topic

Useful for the practical file, for viva preparation, and for the board questions that ask you to predict an observation rather than recall a definition.

Chemical reactions and equationsCombination, decomposition, displacement, double displacement and redox, plus balancing and conservation of mass.

Balancing equations Burning magnesium ribbon Double displacement Thermite reaction Quicklime and water Thermal decomposition Silver chloride in sunlight Metals in copper sulphate Zinc and dilute acid

Metals and non-metalsThe reactivity series, reactions of metals with water, and extraction ideas.

Metals with water and steam

Corrosion and its preventionRusting conditions, the copper patina, silver tarnish, and how each is slowed.

Rusting of iron Green patina on copper Tarnishing of silver

Acids, bases and saltsIndicators, the pH scale, and the chlor-alkali process with its three products.

Indicators and pH Chlor-alkali process

ElectrolysisSplitting water, what forms at each electrode, and the 2:1 gas ratio.

Electrolysis of water

Rate of reactionWhat speeds a reaction up, tested one variable at a time.

Concentration and rate Rate of reaction

Atoms, matter and the periodic tableAtomic structure, states of matter and periodic trends, for the theory behind the practicals.

Build an atom Rutherford gold foil experiment Cathode ray experiment States of matter Periodic table explorer 3D molecular lab

The labs in full

19 experiments matter for this syllabus. Each opens on its own page and is free to use.

Balancing equations

Burning magnesium ribbon

Double displacement

Thermite reaction

Metals with water and steam

Rusting of iron

Green patina on copper

Tarnishing of silver

Indicators and pH

Chlor-alkali process

Electrolysis of water

Concentration and rate

Rate of reaction

Build an atom

Rutherford gold foil experiment

Cathode ray experiment

States of matter

Periodic table explorer

3D molecular lab

Common questions

Can I use these for my practical record file?

Yes. Each lab shows the apparatus, the readings and the observation in the order a record book asks for them, so you can write up a proper aim, procedure, observation and conclusion. Do check your school's format - some teachers want a specific layout or a diagram drawn by hand.

Do these cover the CBSE viva questions?

The common ones, yes. Most viva questions ask why an observation happens rather than what it is, and every simulator explains the chemistry next to the apparatus - why the magnesium ribbon is cleaned first, why rusting needs both water and oxygen, why the hydrogen volume is twice the oxygen volume.

Which chapters do these belong to?

Chemical Reactions and Equations, Acids Bases and Salts, Metals and Non-metals, and Carbon and its Compounds are the chemistry chapters in Class 10 Science. The labs are grouped by topic above so you can find the one matching whatever you are on.

Will it work on a phone?

Yes. Every lab is built for a phone screen and several are better in landscape - there is a rotate button on the page to switch.

Studying something else?

The same labs, grouped for a different syllabus.

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