About MrChemCoach: Ajay Shekhawat, chemistry teacher

MrChemCoach is a chemistry programme with its own software. The simulators, the marking, the paper archive and the tutor were all built here, for one subject, by the person who teaches it - which is the only reason they behave the way a chemistry teacher would want them to.

Founder & teacherIGCSE 0620CBSE Class 9-12JEE & NEET

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The teacher

Ajay Shekhawat · Founder and Chemistry Teacher, Mr ChemCoach EdTech Pvt Ltd

Cambridge focusCambridge IGCSE Chemistry 0620, with particular attention to Paper 5 and Paper 6, where most candidates lose marks they could keep.

IGCSE practicals

Based inIndia. Classes run online across India and internationally.

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How the teaching works

Four things, in this order, every time.

Run it before you name itA student who has watched the cross disappear at five different concentrations does not need to memorise what concentration does to rate. The lab comes first; the definition follows it.

Rate of reaction

Mark like the examiner, not like a friendCambridge and CBSE both pay for precise observation wording. Answers are marked against the real mark scheme, and the missing word is named rather than glossed over.

Tests for gases

Repetition a school bench cannot giveA school lab session runs an experiment once. A simulator runs it twenty times in an afternoon, with one variable changed each time, which is where the pattern actually becomes visible.

All 21 simulators

Past papers, not past-paper-stylePreparation is done on real Cambridge papers, by session and variant, so the language a candidate meets in the exam is the language they have already been reading for months.

0620 course map

What was built here

Not licensed, not embedded from elsewhere. Written for this course.

21 chemistry simulatorsEach one models the real chemistry rather than animating a picture of it: real vapour-liquid equilibrium data, Faraday's law, real cell voltages, real solubility rules.

Chemistry virtual lab

A Cambridge 0620 paper archivePast papers by year, session, variant and component, so a candidate can work a whole series rather than a scattering of questions.

IGCSE Chemistry 0620

An AI tutor that marksAnswers are checked against mark-scheme wording, and the feedback says which mark was missed and why - which is the part a worked solution never tells you.

How it works

Tools that get used mid-questionAn interactive periodic table, a 3D molecular lab, a molar mass and concentration calculator - open beside the paper, not in a separate app.

Periodic table 3D molecular lab

Common questions

Who teaches the classes?

Ajay Shekhawat teaches them. MrChemCoach is a single-subject programme, not an agency with a rota of tutors, so the person who wrote the simulators is the person in the class.

Which syllabuses are covered?

Cambridge IGCSE Chemistry 0620 and O-Level, CBSE Class 9 to 12 chemistry, and the chemistry sections of JEE and NEET. The free simulators are useful for any of them; the taught programmes are separate tracks.

Are the simulators free to use?

Yes. Every experiment on the site opens in a browser with no account and no install, and keeps working offline once it has loaded. Tuition is charged separately, and the platform is included with every track at no extra cost.

Are classes online or in person?

Classes run online, in groups or one to one, with the platform included.

How do I try it before enrolling?

Open any simulator - none of them ask for an account - or book a free demo class from the home page.

Start somewhere

The four ways people usually come in.

IGCSE Chemistry 0620 IGCSE Chemistry practicals CBSE Class 10 chemistry JEE chemistry NEET chemistry Chemistry virtual lab All 21 simulators