Are you a Class 12th CBSE student preparing for your Chemistry term 2 exam in 2022? Due to the vast syllabus of Chemistry, it is not easy to score well in this subject. Students need to clearly understand all the important topics to score well on the exam. There are many topics in the Class 12 chemistry term II exam 2022. Do you want to know which topics are important and likely to be tested in the exam? Here is a list of essential topics that you need to focus on. The topics have been divided into categories. Make sure you revise all of these topics thoroughly before the exam.
|Table of Contents|
|Chapters and their important topics|
|D and f block elements
|Aldehydes, Ketones, and carboxylic acids
|How to study for Class12 Chemistry important topics for term II|
|NCERT solution for class 12 chemistry term II|
It is the study of the relationship between electricity and chemical reactions. In other words, it is the study of how electrons are used to create chemical reactions and how chemical reactions create electricity. This branch of chemistry is important because it helps understand how batteries work, how fuel cells work, and how solar energy is converted into electricity.
- Nernst equation and its applications
The Nernst equation is a mathematical formula used to calculate the voltage (potential difference) generated by an electrochemical cell. This equation is named after German chemist Walther Nernst, who developed it in 1888. The Nernst equation is used to find the voltage (potential difference) generated by an electrochemical cell. The equation calculates the voltage generated by cells that are not at equilibrium.
Also See: CBSE Class 12 Chemistry Important Topics
- Conductance in the electrolytic solution
The conductance of an electrolytic solution is a measure of its ability to conduct electricity. The higher the conductance, the better the solution electricity conducts. The conductance of an electrolytic solution is affected by its concentration, temperature, and pressure. The conductance of an electrolytic solution is also affected by the ions in the solution. The conductance of an electrolytic solution is vital because it determines the amount of current that can flow through the solution. The conductance of an electrolytic solution is essential because it determines the efficiency of the process.
Watch out for our video on Electrochemistry.
- Kohlrausch’s law
Kohlrausch’s law is a mathematical formula used to calculate the conductivity of an electrolytic solution. This law is named after German chemist Rudolf Kohlrausch, who developed it in 1854. The conductivity of an electrolytic solution is the ability to conduct electricity. The higher the conductivity, the better the solution electricity conducts.
To learn about Kohlrausch’s law, click here.
It is the study of the speed of chemical reactions.
- Order of reaction
The order of a chemical reaction is the number of reactants involved in a reaction. The order of a reaction can be 0, 1, 2, or 3. The order of a reaction is important because it determines the rate. The higher the order of the reaction, the faster the reaction.
- Integrated Rate Equations and half-life
The integrated rate equation is a mathematical formula used to calculate the rate of a chemical reaction. The equation is used to calculate the rate of reactions that are not at equilibrium. This equation is also used to calculate the half-life of a reaction. It is the time taken for the concentration of a reactant to decrease by half.
Also See: CBSE Class 12 Chemistry Preparation Tips
- Zero and first-order graphs
Zero-order reactions are reactions that occur at a constant rate. The rate of a zero-order reaction is independent of the concentration of the reactants. First-order reactions are reactions that occur at a rate that is proportional to the concentration of the reactant.
Visit here to know more about Chemical Kinetics.
It is the study of the interaction of molecules with surfaces.
- Freundlich adsorption isotherm
The Freundlich adsorption isotherm is a mathematical formula used to calculate the amount of adsorbed substance that is adsorbed onto a surface. The isotherm is named after German chemist Fritz Freundlich, who developed it in 1906.
- Types of colloid
Colloids are divided into four types: gas, liquid, solid, and gel. Colloids are essential because they are used in many industries, such as food, pharmaceuticals, cosmetics, and paints. Colloids are used to create products with unique properties.
- Hardy- Schulze rule
The Hardy-Schulze rule is used to determine the solubility of a compound in an organic solvent. This is named after German chemist Fritz Hardy and Austrian chemist Ernst Schulze, who developed it in 1894. The rule is important because it is used to predict the solubility of a compound in an organic solvent.
Why are these topics important?
These are the essential topics in physical chemistry that students should focus on for the class 12 CBSE term II chemistry exam. Questions on these topics come for 13 marks, almost 33% of the total.
d and f block elements
D and f block elements are the elements in groups 3-12 of the periodic table. These elements are important because they are responsible for most chemical reactions that occur in nature.
- Properties of transition elements
They are the elements in groups 3-12 of the periodic table. Transition elements are also essential because they are used in many industries, such as the production of metals, alloys, and chemicals.
- Lanthanoid contraction
Lanthanoid contraction means a decrease in atomic radius that occurs when moving from left to right across the lanthanoid series. The contraction is caused by the increasing nuclear charge and the resulting increase in electrostatic attraction between the nucleus and the electrons. This contraction affects the properties of the lanthanoids.
A coordination compound is a compound in which the atoms or molecules are held together by coordinate covalent bonds.
- IUPAC Nomenclature
The IUPAC nomenclature of coordination compounds is used to name coordination compounds. The system is essential because it provides a consistent way to name coordination compounds.
- Valence bond theory
The valence bond theory is used to explain the formation of chemical bonds. It is essential to predict the properties of molecules.
- Crystal field theory
The crystal field theory is a theory used to explain the properties of transition metal complexes.
Why are these topics important?
These are the key topics to be covered by students in Inorganic Chemistry for the class 12th term II exam 2022. These topics will cover 27% of total marks for sure.
Aldehydes, Ketones, and Carboxylic Acids
Aldehydes, ketones, and carboxylic acids are organic compounds that contain the carbonyl group. The carbonyl group is responsible for the chemical reactions occurring in compounds.
- IUPAC Nomenclature
The IUPAC nomenclature is a system used to name organic compounds. The system provides a consistent way to name organic compounds.
- Name reactions(Cannizzaro, Aldol, Wolff Kishner, Clemmensen)
Name reactions are important because they provide a consistent way to name chemical reactions. The Cannizzaro, Aldol, Wolff Kishner, and Clemmensen reactions are important because they synthesise aldehydes, ketones, and carboxylic acids.
- Chemical tests(Tollen’s, Idoform, Fehling’s)
Chemical tests are used to identify certain elements or compounds in a sample. The Tollen’s, Idoform, and Fehling’s tests are used to identify aldehydes, ketones, and carboxylic acids.
Amines are organic compounds that contain the amine group. The amine group is responsible for most chemical reactions occurring in compounds.
- IUPAC Nomenclature
The term IUPAC nomenclature is a system used to name organic compounds. This is important because it provides a consistent way to name organic compounds.
- Basic characteristics of Amines
The basic characteristics of amines are their physical and chemical properties. These properties predict the behaviour of amines.
- Chemical reactions(Hoffmann bromamide, Carbylamine)
Chemical reactions are important because they provide a way to study the behaviour of molecules. The Hoffmann bromamide and Carbylamine reactions are important because they are used to synthesise amines.
Why are these topics important?
These are the topics for the Organic Chemistry part of class 12th CBSE term II exam 2022. Questions from these topics usually form about 40 % of total marks.
How to study for Class12 Chemistry important topics for term II
There are a few things that you can do to make sure that you understand the CBSE Class12 Chemistry term II exam Important Topics.
- The first is to review the material that you covered in class. This will help to identify any areas that you need to focus on.
- Next, it is helpful to create a study guide. Take notes on each of the vital topics and a list of questions that you can use to test your knowledge.
- Finally, it is also helpful to practice solving problems. This will help you see how the material applies in a real-world setting.
By following these tips, you can be sure that you are well prepared for the Class12 Chemistry term II exam.
NCERT solution for class 12 chemistry term 2
The NCERT solution for class 12 chemistry term 2 is a great resource for students. It provides clear and concise explanations for all the concepts covered in the syllabus. In addition, the solution also includes a worked example for each topic, which helps students understand the concept better. Additionally, the NCERT solution is constantly updated, so it is always up-to-date with the latest changes in the syllabus. Overall, the NCERT solution is an excellent resource for students who want to score well in their chemistry exams.
Important NCERT solutions for students preparing for exams
The CBSE has not released the exact date for the class 12 Chemistry term 2 examinations, but it is likely to be held soon. Students can start preparing for the exam by revisiting the important topics discussed here and practising sample papers. The CBSE syllabus for class 12 Chemistry given in this blog covers all topics likely to appear in the term II examination.
1. What is the physical and chemical nature of matter?
The matter is anything that has mass and occupies space. Every physical object in the universe is made of matter. Atoms are the smallest particles of an element that retain the chemical properties of that element. When atoms unite, they form molecules, either simple (like oxygen) or complex (like DNA). The structure of an atom is a central nucleus composed of protons and neutrons, surrounded by electrons orbiting in shells. The electrons determine an atom’s calming behaviour because opposite charges attract nuclei to other atoms and account for an atom’s almost entire mass
2. What are the laws of chemical combination?
These laws describe the behaviour of atoms and molecules when they combine to form new substances. The three laws are the law of conservation of mass, the law of definite proportions, and the law of multiple proportions.
3. What are the types of bonding between atoms?
There are three types of bonding between atoms: ionic, covalent, and metallic.
Ionic bonding is the type of bonding that occurs when an atom loses or gains electrons to form ions. When two ions come close together, they will bind together through electrostatic attraction to form a molecule. Ionic bonds are strong and stable because the electron clouds of the ions overlap extensively. Covalent bonding is the type of bonding that occurs when two atoms share electrons. Covalent bonds are formed by either direct sharing of electrons or by sharing of electron pairs between orbitals on different atoms. Covalent bonds are usually weaker than ionic bonds, but they can be as stable. Metallic bonding is the type of bonding that occurs when electrons are transferred from one atom to another and then back again. Metallic bonds form by the attraction of positive metal ions to negative electrons.
4. How does an atom gain or lose electrons?
When an atom gains electrons, it becomes more stable and less reactive. The atoms now have a full outer shell of electrons and are not likely to react with other atoms.
When an atom loses electrons, it becomes unstable and more reactive. The atom now has an empty outer shell and is looking to fill up its electron levels. This happens when one atom reacts with another, which creates new compounds or elements.
5. How do ionic and covalent compounds differ?
Ionic compounds are composed of two oppositely charged ions, whereas covalent compounds are composed of atoms that share one or more electrons. Ionic compounds tend to be soluble in water because the water molecules can surround the ions and solvate them. Covalent compounds are not as soluble in water because the water molecules cannot form hydrogen bonds with them.
6. What is an acid, base, and salt?
An acid is a molecule that dissociates in water to release a hydrogen ion (H+). The base is a molecule that dissociates in water to release a hydroxide ion (OH-). Salt is a molecule formed when an acid and base react. In water, salts dissociate into ions.