Class 10 is considered the very crucial face of a student’s life. It is the time when one takes an essential step ahead to frame one’s future. Getting an excellent score in the class 10 examination decided your future opportunities. It opens the doors to careers in engineering, medicine, and many other professional courses.
Although every chapter and topic is significant in the examination, we recommend you go through the entire syllabus. Here we have discussed the top 10 most important topics of chemistry class 10 that you should not avoid during your last-minute revision. With this, students can also check last year’s important questions for class 10 science to get the optimum result in the board examination.
Here 10 Most Important Topics For Chemistry
1. Identification and types of reactions.
3. Reaction of acids and bases and formation of NaOH.
4. Application of ph.
5. Chemical Properties and extraction of metals.
6. Reactivity series.
7. Nomenclature and chemical properties of carbon compounds.
8. Soaps and detergents.
9. Position of elements in the modern periodic table.
10. Trends in the modern periodic table.
1. Identification and Types of Reaction
Identification and reaction types are the essential topics of the chapter on chemical reactions and equations. These topics include identification and characteristics and types of chemical reactions. You have to cover the five types of chemical reactions, namely.
a) Combination reaction
b) Decomposition reaction
c) Displacement reaction
d) Double displacement reaction
When two or more reactants combine and form a new product is called a combination reaction.
For example: A+B = AB
It is the opposite of the combination reaction. In this reaction, one product is decomposed into two or more compounds.
For example: AB = A+B
when atoms or ions move from one compound to another compound, then the reaction is called a displacement reaction.
For example: A+BC = AC+B
Double displacement reaction
when both ions(anions and cations) of a compound exchange their position and form a new compound is called a double displacement reaction.
For example: A2x+2By = 2Ay+B2x
In any chemical reaction where the oxidation number of a molecule increases or decreases by gaining or losing an electron is known as oxidation-reaction.
For example CuO+H2→ Cu+ H2O
It is also one of the most crucial topics in the chapter on chemical reactions and equations. In this topic, you have to learn about corrosion strongly, the formula, how corrosion occurs, rusting of iron, the chemical equation of rusting of iron, and prevention methods of corrosion like galvanization (most important), alloying, oil and painting, tin and chromium plating, etc.
3. Reaction of Acids and Bases and the Formation of NaOH
It is the most crucial topic in the Acid, Base, and salts chapter. In this, you need to understand the reaction between acid, bases, and salts. You will learn about types, essential reactions, chemical properties, important formulas, and the formation of NaOH. Students can refer to NCERT Solution for class 10 science to understand the reactions between acids and bases.
4. Application of ph
This topic is also part of Acid, Base, and salts chapter. In this topic you have to prepare the importance of ph in everyday life.
5. Chemical Properties and Extraction of Metals
Chemical properties and extraction of metals are the most important topic in the chapter Metals and Non-metals. In this topic, you will learn about how the extraction and purification of metals occur. Also, you will learn about the essential chemical properties of metals.
6. Reactivity Series
The reactivity series is also an important topic in the chapter on metals and non-metals. In this topic, you have to learn about the list of metals arranged in order of their reactivity.
7. Nomenclature and Chemical Properties of Carbon Compounds
IUPAC nomenclature is the most important topic in the chapter on carbon and its compound. Learn and understand the hydrocarbon nomenclature and different functional groups. Also, don’t forget to learn the chemical properties of carbon compounds, which is very important for board examination.
8. Soaps and Detergent
Soaps and detergents are the chemistry section’s most common and important topics. In this, you will learn how soaps and detergents form and react.
9. Position of the elements in the modern periodic table
Learn the position of the elements in the modern periodic table. Also, do not forget to learn the atomic numbers of important elements in the modern periodic table.
10. Trends in the Modern Periodic Table
In this topic, learn the periodic trends of properties of elements in the periodic table like atomic radius, ionization energy, electron affinity, electronegativity, valency, valance electron, the reactivity of elements, and melting and boiling point of the elements, etc.