Academic · Class 10
Chemistry
What you get
- Every textbook chapter, each section its own lesson
- Explained step by step in plain Bangla, like a tutor
- See where every atom goes in a reaction, in 3D
- Do virtual experiments yourself inside the lessons
- Questions mid-lesson and a quiz at the end, checked instantly
- Watch on phone or computer, from anywhere
- 12 chapters
- 64 lessons
- Free demo lessons
- Follows the textbook
What the lessons are like
Not videos — science happening in front of you
Every Chemistry lesson is built from 3D models you can turn, real photos and animation. How atoms and molecules break apart and join, what happens in the lab — you see it all, while a voice explains it in plain Bangla.
- Atoms and molecules in 3DFollow every atom through a reaction and turn it with a finger — understand it instead of memorising it.
- Bangla voice-overStep-by-step explanations in Bangla — hard words made simple.
- Experiments by handVirtual experiments inside the lesson — mix, heat, measure the temperature.
- Works on a phoneNo app needed — lessons run in the browser on a phone or computer.
- Quizzes as you learnAs soon as a topic ends, a question pops up right on the lesson screen — answer it, see instantly if you're right, then move on to the next topic.
Contents
The whole book, chapter by chapter
Every chapter of the Class 10 Chemistry textbook, in the book's own order. Chapters still being made say “coming soon” and fill in as their lessons are added.
Chapter 1The Concepts of Chemistry8 lessons · 30 minFree demo inside
- The chapter at a glanceInteractive lesson · 0:39 minFree demo
- 1.1 Introduction to ChemistryInteractive lesson · 7:08 min
- 1.2 The Scope of ChemistryInteractive lesson · 4:32 min
- 1.3 Chemistry and Other Branches of ScienceInteractive lesson · 3:00 min
- 1.4 The Importance of Studying ChemistryInteractive lesson · 3:49 min
- 1.5 The Process of Research in ChemistryInteractive lesson · 4:03 min
- 1.6 Safety Measures in the Chemistry LaboratoryInteractive lesson · 4:51 min
- Chapter 1: Practice Questions and SolutionsInteractive lesson · 1:33 min
Chapter 2States of Matter9 lessons · 28 minFree demo inside
- The chapter at a glanceInteractive lesson · 0:52 minFree demo
- 2.1 Matter and States of MatterInteractive lesson · 3:30 min
- 2.2 Kinetic Theory of ParticlesInteractive lesson · 2:45 min
- 2.3 DiffusionInteractive lesson · 4:41 min
- 2.4 EffusionInteractive lesson · 2:39 min
- 2.5 Burning of a Candle and the Three States of WaxInteractive lesson · 2:00 min
- 2.6 Melting and BoilingInteractive lesson · 5:48 min
- 2.7 Distillation and SublimationInteractive lesson · 3:36 min
- Chapter 2: Practice Questions and SolutionsInteractive lesson · 1:55 min
Chapter 3Structure of Matter12 lessons · 44 minFree demo inside
- The chapter at a glanceInteractive lesson · 1:41 minFree demo
- 3.1 Elements and CompoundsInteractive lesson · 2:48 min
- 3.2 Atoms and MoleculesInteractive lesson · 1:48 min
- 3.3 Symbols of ElementsInteractive lesson · 2:25 min
- 3.4 FormulaInteractive lesson · 1:35 min
- 3.5 The fundamental particles of an atomInteractive lesson · 4:35 min
- 3.6 Atomic ModelInteractive lesson · 7:16 min
- 3.7 Orbital Electronic Configuration of AtomsInteractive lesson · 7:50 min
- 3.8 IsotopesInteractive lesson · 2:01 min
- 3.9 Atomic Mass or Relative Atomic MassInteractive lesson · 5:42 min
- 3.10 Radioactive Isotopes and Their UsesInteractive lesson · 4:41 min
- Chapter 3: Practice Questions and SolutionsInteractive lesson · 1:47 min
Chapter 4Periodic Table11 lessons · 38 minFree demo inside
- The chapter at a glanceInteractive lesson · 1:02 minFree demo
- 4.1 Background of Periodic TableInteractive lesson · 5:27 min
- 4.2 Characteristics of the Periodic TableInteractive lesson · 2:31 min
- 4.3 Determination of the Position of Elements in the Periodic Table from Their Electronic ConfigurationInteractive lesson · 3:28 min
- 4.4 Electronic Configurations of Elements are the Main Basis of the Periodic TableInteractive lesson · 2:13 min
- 4.5 Some Exceptions in the Periodic TableInteractive lesson · 2:15 min
- 4.6 Periodic Properties of ElementsInteractive lesson · 6:43 min
- 4.7 The Special Names of Elements Present in Various GroupsInteractive lesson · 4:28 min
- 4.8 Advantages of the Periodic TableInteractive lesson · 2:35 min
- 4.9 Elements in the Same Group in the Periodic Table Show Similar Chemical PropertiesInteractive lesson · 4:48 min
- Chapter 4: Practice Questions and SolutionsInteractive lesson · 2:00 min
Chapter 5Chemical Bond15 lessons · 47 minFree demo inside
- The chapter at a glanceInteractive lesson · 1:03 minFree demo
- 5.1 Valence ElectronsInteractive lesson · 2:22 min
- 5.2 ValencyInteractive lesson · 3:04 min
- 5.3 Radicals and Their ValenciesInteractive lesson · 2:19 min
- 5.4 Chemical Formula of CompoundsInteractive lesson · 3:09 min
- 5.5 Molecular Formula and Structural FormulaInteractive lesson · 1:48 min
- 5.6 Octet and Duet RulesInteractive lesson · 2:46 min
- 5.7 Inert Gases and their StabilityInteractive lesson · 2:18 min
- 5.8 Chemical Bonds and the Causes of Their FormationInteractive lesson · 1:52 min
- 5.9 Cations and AnionsInteractive lesson · 3:34 min
- 5.10 Ionic Bond or Electrovalent BondInteractive lesson · 4:05 min
- 5.11 Covalent BondInteractive lesson · 5:07 min
- 5.12 Characteristics of Ionic and Covalent BondsInteractive lesson · 6:44 min
- 5.13 Metallic BondInteractive lesson · 4:10 min
- Chapter 5: Practice Questions and SolutionsInteractive lesson · 2:15 min
Chapter 6Concept of Mole and Chemical Counting9 lessonsFree demo inside
- The chapter at a glanceInteractive lessonFree demo
- 6.1 MoleInteractive lesson
- 6.2 The Percentage Composition of Elements in CompoundsInteractive lesson
- 6.3 Chemical Reactions and Chemical EquationsInteractive lesson
- 6.4 Limiting ReactantInteractive lesson
- 6.5 Calculation of the Percentage of YieldInteractive lesson
- Experiment: Making 0.1 M sodium carbonate solution in a 250 mL volumetric flaskInteractive lesson
- Experiment: The percentage of water of crystallisation in blue vitriolInteractive lesson
- Chapter 6: Practice Questions and SolutionsInteractive lesson
- Chapter 7Chemical ReactionsComing soon
- Chapter 8Chemistry and EnergyComing soon
- Chapter 9Balance of Acid-BaseComing soon
- Chapter 10Mineral Resources: Metals and Non-metalsComing soon
- Chapter 11Mineral Resources: FossilsComing soon
- Chapter 12Chemistry in Our LivesComing soon
Questions
What you'll want to know first
More questionsAre the lessons videos?
No. The Chemistry lessons are interactive, built with animation and a Bangla voice-over. They open in the browser on a phone or computer.
Can I try before enrolling?
Yes. Lessons marked “free demo” are open to everyone — no login needed.
Does it follow the syllabus?
Yes. The lessons follow the chapters of the Class 10 Chemistry textbook, in the book's order.
How do I pay?
Send Money with bKash, Nagad or Rocket and submit the transaction ID (TrxID). Once we verify it, every lesson opens.
How long can I watch the lessons?
The enrol box shows how long access lasts. Within that time, watch as often as you like.