Grades/ Grade 11/ Chemistry/Unit 1 · Stoichiometry
Class XI · Chemistry · Unit 1

Stoichiometry — three ways to learn it.

Start with the full lecture, watch the reactions come alive in the interactive lecture, then do the practicals yourself in the virtual lab. Pick any door — they all teach the same chapter.

Choose how you want to learn
Section 1
📖
Lecture & walkthrough
The complete written lesson — every definition, law, formula and worked numerical, exam-focused for the BIEK / Sindh Board paper. Read it, or follow the narrated walkthrough.
16 sections · ~25 min read
Open the lecture →
Section 2
🎬
Interactive lecture
The exact same lecture — but as you scroll, a permanent live panel on the right animates every concept: the mole, percentage composition, empirical formula, the mole-ratio bridge, and the limiting reactant you can play with.
Same content · live D3 animation per section
Open the interactive lecture →
Section 3
🧪
Virtual lab
Do the practicals yourself in a safe, virtual bench — pour, heat, mix and observe. All of the course's hands-on experiments live here, organised by chapter.
Hands-on · all practicals in one place
Enter the virtual lab →
Test yourself
📝 Practice — 75+ board MCQs & solved numericals ← Back to all chapters

One chapter, three doors

Read it in the lecture, see it move in the interactive lecture, and do it with your own hands in the virtual lab. The same three sections will open for every chapter as we build the course out.