🌟 Introduction
Chemistry is one of the most important and scoring subjects for Class 10 ICSE Board students. The ICSE Chemistry paper demands strong conceptual clarity, accurate terminology, and precise definitions. At Dhingra Classes Nashik, we have compiled the complete list of Chemistry keywords that every Class 10 ICSE student must master for board exam success.
Class 10 Chemistry (ICSE) covers crucial topics including Periodic Table, Chemical Bonding, Acids, Bases and Salts, Analytical Chemistry, Mole Concept and Stoichiometry, Electrolysis, Metallurgy, Study of Compounds, and Organic Chemistry. Understanding Chemistry keywords and their meanings is essential for writing accurate answers and scoring high marks in the board examination.
Chemistry helps us understand the composition, structure, properties, and changes of matter. In Class 10 ICSE, students are introduced to advanced chemistry concepts that require precise terminology. This comprehensive guide covers 150+ Chemistry keywords organized by chapter, making it easy for Class 10 ICSE students to learn and revise before exams.
📚 Why Learning Chemistry Keywords Is Important for ICSE Students
Before diving into the complete list, let us understand why mastering Chemistry keywords is crucial for Class 10 ICSE students.
🎯 Benefits of Learning Chemistry Keywords
✅ Better Exam Answers: Using correct terminology impresses examiners
📝 Improved Understanding: Keywords help students grasp chemistry concepts
🧠 Easy Revision: Keywords serve as memory triggers during revision
🏆 Higher Scores: Precise use of keywords leads to better marks
📊 Chemical Equations: Correct terms help in writing balanced equations
📊 Answer Writing: Keywords help structure answers effectively
🔬 Practical Knowledge: Understanding chemistry helps in practical exams
📖 Complete List of Chemistry Keywords for Class 10 ICSE
⚛️ Chapter 1: Periodic Table
| Keyword | Meaning |
|---|---|
| Periodic Table | A tabular arrangement of elements based on atomic number |
| Mendeleev’s Periodic Table | The first widely accepted periodic table based on atomic mass |
| Modern Periodic Law | Properties of elements are a periodic function of their atomic number |
| Period | A horizontal row in the periodic table |
| Group | A vertical column in the periodic table |
| Alkali Metals | Group 1 elements (Li, Na, K, etc.) |
| Alkaline Earth Metals | Group 2 elements (Be, Mg, Ca, etc.) |
| Halogens | Group 17 elements (F, Cl, Br, I) |
| Noble Gases | Group 18 elements (He, Ne, Ar, etc.) |
| Transition Elements | Elements in the d-block of the periodic table |
| Inner Transition Elements | Elements in the f-block of the periodic table |
| Lanthanides | Elements with atomic numbers 57–71 |
| Actinides | Elements with atomic numbers 89–103 |
| Metals | Elements that are shiny, malleable, and conduct electricity |
| Non-Metals | Elements that are not shiny, brittle, and do not conduct electricity |
| Metalloids | Elements with properties of both metals and non-metals |
| Atomic Radius | The size of an atom |
| Ionization Potential | The energy required to remove an electron from an atom |
| Electron Affinity | The energy released when an atom gains an electron |
| Electronegativity | The tendency of an atom to attract electrons |
| Valence Electrons | Electrons in the outermost shell |
| Valency | The combining capacity of an element |
| Reactivity Series | A series of metals arranged in order of reactivity |
| Atomic Number | The number of protons in an atom |
| Mass Number | The sum of protons and neutrons |
🔗 Chapter 2: Chemical Bonding
| Keyword | Meaning |
|---|---|
| Chemical Bond | A force that holds atoms together in a compound |
| Ionic Bond | A bond formed by the transfer of electrons |
| Covalent Bond | A bond formed by the sharing of electrons |
| Coordinate Bond | A bond where both electrons come from one atom |
| Metallic Bond | A bond formed by the sharing of free electrons |
| Electrovalent Bond | Another name for ionic bond |
| Ion | A charged particle |
| Cation | A positively charged ion |
| Anion | A negatively charged ion |
| Valency | The combining capacity of an element |
| Octet Rule | Atoms tend to have eight electrons in the outermost shell |
| Duplet Rule | Atoms tend to have two electrons in the outermost shell |
| Electron Dot Structure | A diagram showing valence electrons |
| Lewis Structure | Another name for electron dot structure |
| Polar Bond | A bond with unequal sharing of electrons |
| Non-Polar Bond | A bond with equal sharing of electrons |
| Electronegativity Difference | The difference in electronegativity between two atoms |
| Hydrogen Bond | A weak bond between hydrogen and an electronegative atom |
| Van der Waals Forces | Weak forces between molecules |
| Molecular Formula | The actual formula of a compound |
| Empirical Formula | The simplest formula of a compound |
| Structural Formula | A formula showing the arrangement of atoms |
| Bond Angle | The angle between two bonds |
| Bond Length | The distance between two bonded atoms |
| Bond Energy | The energy required to break a bond |
🧪 Chapter 3: Acids, Bases and Salts
| Keyword | Meaning |
|---|---|
| Acid | A substance that produces hydrogen ions in water |
| Base | A substance that produces hydroxide ions in water |
| Alkali | A base that is soluble in water |
| Salt | A compound formed by the reaction of an acid and a base |
| Indicator | A substance that changes colour in acidic or basic solutions |
| Litmus | A natural indicator |
| Methyl Orange | A synthetic indicator |
| Phenolphthalein | A synthetic indicator |
| pH Scale | A scale from 0 to 14 that measures acidity or basicity |
| pH | A measure of hydrogen ion concentration |
| Neutralization | The reaction between an acid and a base |
| Strong Acid | An acid that completely ionizes in water |
| Weak Acid | An acid that partially ionizes in water |
| Strong Base | A base that completely ionizes in water |
| Weak Base | A base that partially ionizes in water |
| Concentrated Acid | An acid with a high concentration |
| Dilute Acid | An acid with a low concentration |
| Basicity of Acid | The number of replaceable hydrogen ions |
| Acidity of Base | The number of replaceable hydroxide ions |
| Normal Salt | A salt formed by complete neutralization |
| Acidic Salt | A salt formed by partial neutralization of an acid |
| Basic Salt | A salt formed by partial neutralization of a base |
| Double Salt | A salt with two different cations or anions |
| Complex Salt | A salt with a complex ion |
| Water of Crystallization | Water molecules in a crystal |
| Efflorescence | The loss of water of crystallization |
| Deliquescence | The absorption of moisture from the air |
| Hygroscopic | A substance that absorbs moisture |
| Oleum | Concentrated sulphuric acid with sulphur trioxide |
🔬 Chapter 4: Analytical Chemistry
| Keyword | Meaning |
|---|---|
| Analytical Chemistry | The branch of chemistry that deals with analysis |
| Qualitative Analysis | Analysis to identify substances |
| Quantitative Analysis | Analysis to determine amounts |
| Flame Test | A test to identify metal ions by flame colour |
| Sodium Hydroxide Test | A test to identify metal ions |
| Ammonium Hydroxide Test | A test to identify metal ions |
| Hydrogen Sulphide Test | A test to identify metal ions |
| Precipitate | A solid formed in a solution |
| Colour Change | A change in colour during a reaction |
| Gas Evolution | The release of gas during a reaction |
| Confirmatory Test | A test that confirms the presence of a substance |
| Group Reagent | A reagent used to identify a group of ions |
| Cation Analysis | Analysis to identify cations |
| Anion Analysis | Analysis to identify anions |
| Dry Test | A test performed without water |
| Wet Test | A test performed with water |
| Lead Acetate Paper | A paper used to test for sulphide ions |
| Lime Water Test | A test for carbon dioxide |
| Barium Chloride Test | A test for sulphate ions |
| Silver Nitrate Test | A test for chloride ions |
⚖️ Chapter 5: Mole Concept and Stoichiometry
| Keyword | Meaning |
|---|---|
| Mole | The amount of substance containing 6.022 × 10²³ particles |
| Avogadro’s Number | 6.022 × 10²³ |
| Molar Mass | The mass of one mole of a substance |
| Gram Atomic Mass | The atomic mass expressed in grams |
| Gram Molecular Mass | The molecular mass expressed in grams |
| Molar Volume | The volume of one mole of a gas at STP (22.4 L) |
| STP | Standard Temperature and Pressure |
| Stoichiometry | The calculation of quantities in chemical reactions |
| Limiting Reagent | The reactant that limits the amount of product |
| Excess Reagent | The reactant that is left over |
| Percentage Yield | The actual yield as a percentage of theoretical yield |
| Theoretical Yield | The calculated amount of product |
| Actual Yield | The amount of product actually obtained |
| Empirical Formula | The simplest formula of a compound |
| Molecular Formula | The actual formula of a compound |
| Percentage Composition | The percentage of each element in a compound |
| Chemical Equation | A representation of a chemical reaction |
| Balanced Equation | An equation with equal atoms on both sides |
| Skeletal Equation | An unbalanced equation |
| Coefficient | A number placed before a formula |
⚡ Chapter 6: Electrolysis
| Keyword | Meaning |
|---|---|
| Electrolysis | The process of using electricity to cause a chemical change |
| Electrolyte | A substance that conducts electricity in solution |
| Non-Electrolyte | A substance that does not conduct electricity |
| Electrode | A conductor through which electricity enters or leaves |
| Anode | The positive electrode |
| Cathode | The negative electrode |
| Cation | A positively charged ion |
| Anion | A negatively charged ion |
| Electrolytic Cell | A cell used for electrolysis |
| Voltaic Cell | A cell that produces electricity |
| Faraday’s First Law | The mass deposited is proportional to the charge |
| Faraday’s Second Law | The mass deposited is proportional to the equivalent weight |
| Electroplating | The process of coating a metal with another metal |
| Electrorefining | The process of purifying a metal |
| Electrometallurgy | The process of extracting metals using electricity |
| Oxidation | The loss of electrons |
| Reduction | The gain of electrons |
| Redox Reaction | A reaction involving oxidation and reduction |
| Oxidizing Agent | A substance that oxidizes another substance |
| Reducing Agent | A substance that reduces another substance |
⛏️ Chapter 7: Metallurgy
| Keyword | Meaning |
|---|---|
| Metallurgy | The science of extracting metals from ores |
| Ore | A mineral from which a metal is extracted |
| Gangue | The impurities in an ore |
| Mining | The process of extracting ore from the earth |
| Concentration | The process of removing gangue from ore |
| Froth Flotation | A method of concentration for sulphide ores |
| Magnetic Separation | A method of concentration for magnetic ores |
| Gravity Separation | A method of concentration using density |
| Leaching | A method of concentration using a solvent |
| Roasting | Heating an ore in the presence of air |
| Calcination | Heating an ore in the absence of air |
| Smelting | Reducing an ore to obtain the metal |
| Reducing Agent | A substance that reduces a metal oxide |
| Flux | A substance added to remove impurities |
| Slag | The waste material formed during smelting |
| Refining | The process of purifying a metal |
| Electrolytic Refining | Refining using electrolysis |
| Zone Refining | Refining using melting and freezing |
| Van Arkel Method | Refining using iodine |
| Mond’s Process | Refining nickel using carbon monoxide |
| Alloy | A mixture of two or more metals |
| Amalgam | An alloy of mercury with another metal |
| Corrosion | The deterioration of a metal |
| Rusting | The corrosion of iron |
| Galvanization | Coating iron with zinc to prevent rusting |
🧪 Chapter 8: Study of Compounds
| Keyword | Meaning |
|---|---|
| Hydrogen Chloride | A compound of hydrogen and chlorine |
| Hydrochloric Acid | A solution of hydrogen chloride in water |
| Ammonia | A compound of nitrogen and hydrogen |
| Ammonium Hydroxide | A solution of ammonia in water |
| Nitric Acid | A compound of nitrogen, hydrogen, and oxygen |
| Sulphuric Acid | A compound of sulphur, hydrogen, and oxygen |
| Contact Process | The industrial process for making sulphuric acid |
| Ostwald Process | The industrial process for making nitric acid |
| Haber Process | The industrial process for making ammonia |
| Catalyst | A substance that speeds up a reaction |
| Promoter | A substance that increases the activity of a catalyst |
| Vanadium Pentoxide | A catalyst used in the contact process |
| Platinum | A catalyst used in the Ostwald process |
| Iron | A catalyst used in the Haber process |
| Reversible Reaction | A reaction that can go in both directions |
| Irreversible Reaction | A reaction that goes in only one direction |
| Equilibrium | A state where the forward and reverse reactions are equal |
| Le Chatelier’s Principle | A principle that predicts the effect of changes on equilibrium |
| Exothermic Reaction | A reaction that releases heat |
| Endothermic Reaction | A reaction that absorbs heat |
🌿 Chapter 9: Organic Chemistry
| Keyword | Meaning |
|---|---|
| Organic Chemistry | The branch of chemistry that deals with carbon compounds |
| Hydrocarbon | A compound of hydrogen and carbon |
| Alkane | A saturated hydrocarbon |
| Alkene | An unsaturated hydrocarbon with one double bond |
| Alkyne | An unsaturated hydrocarbon with one triple bond |
| Methane | The simplest alkane |
| Ethane | An alkane with two carbon atoms |
| Ethene | An alkene with two carbon atoms |
| Ethyne | An alkyne with two carbon atoms |
| Functional Group | A group of atoms that gives a compound its properties |
| Alcohol | A compound with an -OH group |
| Aldehyde | A compound with a -CHO group |
| Ketone | A compound with a -CO- group |
| Carboxylic Acid | A compound with a -COOH group |
| Ester | A compound formed from an alcohol and an acid |
| Isomer | Compounds with the same formula but different structures |
| Homologous Series | A series of compounds with the same functional group |
| IUPAC Nomenclature | The system of naming organic compounds |
| Substitution Reaction | A reaction where one atom is replaced by another |
| Addition Reaction | A reaction where atoms are added to a molecule |
| Elimination Reaction | A reaction where atoms are removed from a molecule |
| Polymerization | The process of forming a polymer |
| Polymer | A large molecule made of repeating units |
| Monomer | A small molecule that forms a polymer |
| Catenation | The ability of carbon to form chains |
📝 How to Use This Keyword List for ICSE Exam Preparation
At Dhingra Classes Nashik, we recommend the following strategies to master Chemistry keywords for Class 10 ICSE.
🎯 Study Tips
📖 Read each keyword with its meaning carefully
✏️ Write each keyword 3–4 times to memorize spelling
🗣️ Use keywords in sentences to understand context
📝 Create flashcards for quick revision
🔬 Draw diagrams to understand chemistry concepts
🔄 Revise weekly to ensure long-term retention
📋 Practice chemical equations using correct terms
✅ Take mock tests to check your understanding
📊 Focus on high-weightage chapters first
🎯 Use keywords in answer writing practice
📊 Class 10 ICSE Chemistry Weightage
| Chapter | Expected Marks |
|---|---|
| Periodic Table | 8 – 10 Marks |
| Chemical Bonding | 8 – 10 Marks |
| Acids, Bases and Salts | 8 – 10 Marks |
| Analytical Chemistry | 6 – 8 Marks |
| Mole Concept and Stoichiometry | 8 – 10 Marks |
| Electrolysis | 6 – 8 Marks |
| Metallurgy | 6 – 8 Marks |
| Study of Compounds | 8 – 10 Marks |
| Organic Chemistry | 8 – 10 Marks |
🏫 How Dhingra Classes Nashik Helps Class 10 ICSE Students Master Chemistry
At Dhingra Classes Nashik, we provide comprehensive coaching for Chemistry and all other subjects for Class 10 ICSE students. Our approach includes:
📚 Structured Lessons: Teaching concepts with clear explanations
🔬 Diagram Practice: Regular diagram work for better understanding
📝 Keyword Lists: Providing comprehensive keyword lists like this one
✏️ Regular Tests: Weekly tests to ensure continuous revision
🎯 Doubt Clearing Sessions: Personalized attention to every student
📊 Progress Tracking: Regular updates to parents about student progress
🏆 Equation Writing Practice: Teaching how to write balanced equations
📞 Contact Dhingra Classes Nashik
📱 Phone: 98230 62106
📧 Email: dhingraclassesnsk@gmail.com
🌐 Website: www.dhingraclassesnashik.com
📍 Address: Plot No 3, XQ3G+H3M Deacon Homes, 301C, opp. Metro Zone, near Guru Govind Sing, Samarth Nagar, Dnyaneshwar Nagar, Pathardi Phata, Nashik, Maharashtra 422009
🏁 Conclusion
Mastering Chemistry keywords is essential for Class 10 ICSE students to score high marks in board examinations. This comprehensive list of 150+ Chemistry keywords with their meanings covers all major chapters including Periodic Table, Chemical Bonding, Acids, Bases and Salts, Analytical Chemistry, Mole Concept and Stoichiometry, Electrolysis, Metallurgy, Study of Compounds, and Organic Chemistry.
By regularly revising these keywords and using them in your answers, you can improve your understanding and score better in exams. At Dhingra Classes Nashik, we are committed to helping Class 10 ICSE students excel in Chemistry and achieve academic success. Remember, Chemistry is not just a subject—it is the study of matter and its transformations, and understanding it makes us better observers of the world around us.
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