The subject of chemistry is the study of matter and the changes it experiences. CBSE Class 12 students, who opted science stream can find it a scoring subject, but it requires regular studying with proper strategy to get good grades. The NCERT Chemistry Class 12 textbook acts as an important resource. Here you will learn how to effectively use the NCERT Chemistry Class 12 Book to score well in your exams.
NCERT Chemistry Class 12 Book helps to understand the foundational part of chemistry in an easy and clear language. Students will get to know important strategies, important chapters and their summaries, and important formulae, and recommend reference resources to improve understanding and secure good marks during exams.
How to score well using the NCERT Class 12 Chemistry Textbook?
- Thorough Reading: Reading the text in a hurry won’t help in exams, students should understand the text as well. Learning with the material given in the NCERT textbook highlighting important points, taking notes, and underlining important definitions & formulas can help students secure good grades.
- Core Concept: Focusing on understanding the core concepts rather than simply memorizing facts can help students retain their notes better. They can utilize diagrams and illustrations to visualize the processes and structures presented in the NCERT Class 12 Chemistry textbook, this is how they won’t miss any topic.
- Practice Makes Perfect: Thoroughly solving the exercises and practice problems from the NCERT textbook and specimen question papers can help students learn and retain the subject well. This helps identify areas requiring improvement and strengthens the topics that need more attention.
NCERT Chemistry Class 12 Book adheres to the Central Board of Secondary Education (CBSE), UP Board, and many competitive exams syllabus and covers all the important topics that students need to learn and understand during the preparation of exams.
NCERT Chemistry Class 12 Book: Important Chapters Summary
NCERT Chemistry Class 12 Book covers several topics. Here’s an overview of some important chapters:
- Solid State: This chapter explains the structure and properties of solids – crystalline and amorphous solids, packing arrangements, and unit cells.
- Solutions: This chapter gives a clear understanding of solutions, understanding their types, concentration units, colligative properties, and factors affecting them.
- Electrochemistry: In this chapter, students learn about redox reactions, electrochemical cells, standard electrode potentials, and the applications of electrochemistry.
- Chemical Kinetics: This chapter allows students to learn about reaction rates, factors affecting them, rate laws, and the concept of the order of a reaction.
- Surface Chemistry: Here students discuss the properties of surfaces, adsorption, catalysis, and emulsions.
- General Principles and Processes of Isolation of Elements: Students can easily understand the various methods employed for the isolation of elements from their compounds in this chapter.
- The p-Block Elements: This chapter details the properties, trends, and important compounds of group 15 (nitrogen family), group 16 (chalcogens), and group 17 (halogens).
- The d- and f-Block Elements: This one explains the transition metals, their properties, coordination compounds, and the lanthanoids and actinoids.
- Coordination Compounds: Students can understand the structure, nomenclature, bonding, isomerism, and applications of coordination compounds in this chapter.
Formulas Important from NCERT Chemistry Class 12 Book
NCERT Chemistry Class 12 Book gives students a foundation in chemical principles. However, understanding these concepts requires learning important formulas. Here are the important formulas and equations students can go through:
Gasses:
- Ideal Gas Equation (PV = nRT): This fundamental equation relates pressure (P), volume (V), temperature (T), and the number of moles (n) of an ideal gas. It allows you to calculate various gas properties under different conditions.
Solutions:
- Molarity (M = Concentration (moles/litre)): This formula defines the concentration of a solute (dissolved substance) in terms of moles per litre of solution. It’s a widely used unit for expressing solution concentration.
- Molality (m = Moles of solute/Kg of solvent): Molality expresses concentration based on the mass of solvent (in kilograms) rather than the volume of solution. This unit is advantageous when dealing with solutions whose volume changes with temperature.
Chemical Kinetics:
- Arrhenius Equation (k = A * e^(-Ea/RT)): This equation describes the relationship between the rate constant (k) of a reaction, the pre-exponential factor (A), the activation energy (Ea), the absolute temperature (T), and the universal gas constant (R). It helps you understand how temperature and activation energy influence reaction rates.
Equilibrium:
- Equilibrium Constant (Kc = [Products] / [Reactants]): This expression defines the equilibrium constant (Kc) for a reaction at a specific temperature. It represents the ratio of the equilibrium concentrations of products raised to their respective stoichiometric coefficients, divided by the same for reactants. Kc indicates the extent to which reactants convert to products and vice versa at equilibrium.
Thermodynamics:
- Enthalpy Change (ΔH = Σ Hproducts – Σ Hreactants): This equation calculates the enthalpy change (ΔH) for a reaction. It represents the heat absorbed (positive ΔH) or released (negative ΔH) during a reaction at constant pressure. Σ Hproducts and Σ Hreactants denote the sum of the enthalpies of the formation of products and reactants, respectively.
- Entropy Change (ΔS = Σ Sproducts – Σ Sreactants): Similar to enthalpy, entropy change (ΔS) signifies the change in randomness or disorder of the system during a reaction. A positive ΔS indicates an increase in randomness, while a negative ΔS suggests a decrease in randomness.
Electrochemistry:
- Standard Electrode Potential (E°): This potential signifies the tendency of a half-reaction (involving one electrode) to gain or lose electrons under standard conditions. By comparing standard electrode potentials of two half-reactions, you can predict the spontaneity of the overall redox reaction using the standard cell potential.
Reference Books to Use with NCERT Class 12 Chemistry Book
While the NCERT Class 12 Chemistry book is the most important for the preparation, supplemental resources can also provide some additional insights and practice questions. Here are some highly-rated reference books:
- Educart CBSE Class 12 Chemistry Question Bank: Provides in-depth chapter explanations with valuable aids like mind maps, caution points, and related theory. The book also includes revised pattern-based questions for practice.
- Arihant’s Concise Course Chemistry Class 12: Offers easy and concise explanations, illustrations, and practice problems for students of 12th standard and competitive exams too.
- Dinesh Chemistry Class 12: Provides chapter-wise explanations, solved examples, and additional MCQs which helps in the preparation of exams.
The NCERT Chemistry Class 12 textbook is very important in building the foundational concepts for further studies in chemistry. Students are often confused about buying the best book for them, but there are several resources available. Among all of them, the NCERT Class 12 Chemistry Book stands ahead as it has practice questions, important concepts, fundamental topics etc. all there itself. This is how it comes as a complete package.
Students can refer to the tips mentioned to score well in exams and to improve their learning style. They can also refer to the important topics, chapters, summaries, and formulas mentioned.
Download the NCERT Textbook Class 12 Chemistry and other subjects for free from the link given. more info ..
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