This page is the complete chapter-wise index of class 10 chemistry formulas — four chapters, in textbook order. Each chapter page gives the formulas at a glance, grouped by topic, with every symbol explained. You can also browse the wider Class 10 chemistry formula notes collection.
Need the fastest route? Find the chapter you are revising in the directory below and tap through to its formula page.
Class 10 Chemistry Formula Chapters at a Glance
The directory below is the complete class 10 chemistry formula list — four chapters, in textbook order.
- Chemical Reactions and Equations: Covers the formulas of common reactants and products and how to balance a chemical equation, plus the five reaction types you must be able to name: combination, decomposition, displacement, double displacement, and oxidation-reduction.
- Acids, Bases and Salts: Covers the pH scale and the formulas you must write from memory: common acids, bases, and salts such as NaCl, NaHCO3, Na2CO3, CaOCl2, CuSO4·5H2O, and CaSO4·1/2H2O.
- Metals and Non-metals: Covers the reactivity series, the ionic compounds metals and non-metals form, and the formulas of common ores and extraction products.
- Carbon and its Compounds: Covers molecular and structural formulas, the alkane homologous series, functional groups, ethanol and ethanoic acid, and how soaps act on hard water.
What Kind of Formulas Does Each Chapter Use?
| Ch | Chapter notes | Key topics covered |
|---|---|---|
| 1 | Chemical Reactions and Equations | About These Formulas · Formulas at a Glance · All Formulas, Grouped by Topic |
| 2 | Acids, Bases and Salts | About These Formulas · Formulas at a Glance · All Formulas, Grouped by Topic |
| 3 | Metals and Non-metals | About These Formulas · Formulas at a Glance · All Formulas, Grouped by Topic |
| 4 | Carbon and its Compounds | About These Formulas · Formulas at a Glance · All Formulas, Grouped by Topic |
Class 10 chemistry has only one mathematical formula — pH = -log[H+] in Acids, Bases and Salts. Every other entry in the formula pages is a compound formula or a balanced chemical equation.
| Chapter | Main kind of formula | Example to recognise |
|---|---|---|
| Chemical Reactions and Equations | Balanced chemical equations | Zn + H2SO4 → ZnSO4 + H2 |
| Acids, Bases and Salts | Salt formulas plus the pH formula | NaHCO3; pH = -log[H+] |
| Metals and Non-metals | Reactivity series plus formulas of ores and ionic compounds | Fe2O3, Al2O3 |
| Carbon and its Compounds | Molecular and structural formulas | C2H5OH, CH3COOH |
How to Use the Class 10 Chemistry Formula Pages
Run these four steps with any of the chapter pages.
- Open the chapter page for the topic you are revising.
- Read Formulas at a Glance once — about 2 minutes to see the full list.
- Cover the answer column of the grouped formulas and recite each formula aloud — 10 minutes.
- On a blank page, write every formula you remember, then check against the page — the remaining 8 minutes.
That complete sequence is the 20 minute chapter revision workflow for a single chapter.
Two edge cases matter. The reactivity series in Metals and Non-metals is a table, not a formula — you read it to predict which metal displaces another. Corrosion and rancidity in Chapter 1 are ideas with no formulas, so revise their definitions and conditions instead of hunting for equations.
For the full chapter text behind these formulas, open the official NCERT Class 10 Science textbook; Chapters 1 to 4 are the four chemistry chapters.
Common Formula Mistakes to Avoid in Class 10
- Confusing a formula with an equation. NaCl is the formula of one compound. The equation of a reaction shows a change (reactants → products) and must be balanced.
- Writing formulas with the wrong valency. CaOH, NaCO3 and AlO are wrong; the correct forms are Ca(OH)2, Na2CO3 and Al2O3. Fix it by criss-crossing the valencies: the charge of the cation becomes the subscript of the anion, and vice versa.
- Naming the reaction type separately. When a question asks for a reaction, name the type too — combination, decomposition, displacement, double displacement, or oxidation-reduction — because the equation and the type are marked together.
What’s Inside Each Chapter Formula Page
Every chapter page follows the same five-part skeleton.
| Page section | What it is for |
|---|---|
| About These Formulas | Which formulas in this chapter are worth memorising and which are given to you. |
| Formulas at a Glance | The full list on one screen, for the 20 minute revision pass. |
| All Formulas, Grouped by Topic | Formulas sorted by idea (salts by family, reactions by type), for learning the logic. |
| What Each Symbol Means | State symbols, charges, subscripts, and the log in pH. |
| When to Use Each Formula | Which kind of task needs which formula. |
The skeleton is the same across the four chapters, but the Carbon page leans on structural formulas, the Acids page on salt formulas plus pH, and the Metals page on the reactivity series.
Frequently Asked Questions
How many chapters are there for class 10 chemistry formulas?
Four: Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-metals, and Carbon and its Compounds.
Do chemical equations count as class 10 chemistry formulas?
Yes: a balanced equation is the formula of a reaction — correct formulas of reactants and products with state symbols — while a compound formula like NaCl names a single substance.
Which class 10 chemistry chapter has the most formulas to learn?
Acids, Bases and Salts for compound formulas (NaHCO3, Na2CO3, CaOCl2, CaSO4·1/2H2O) and Carbon and its Compounds for structural formulas.
What is the only maths formula in class 10 chemistry?
pH = -log[H+]; every other entry in these formula pages is a chemical formula or a balanced equation.
Reference: NCERT textbooks (CBSE).