Chemistry Class 11 CBSE 2021-22

 CBSE Chemistry Class 11 Syllabus 2020-21: Are you Looking for Chemistry Class 11 CBSE Syllabus 2021-22, Chapter, Topics ??? Then, you are on the correct track. Those who are curious to know about the Learning for Class XI CBSE Chemistry Syllabus 2020-21 may go into this article. As we have presented the details for CBSE Class 11 Syllabus. We all are aware that how great are the Class XI Exams in a student’ Life. But students may not have to be concerned about the CBSE Syllabus.

 Chemistry class 11 CBSE Syllabus 2020-21

Rationale

Higher Secondary is the most important stage of school education because, at this position specialized discipline-based, content-oriented courses are offered. Students reach this stage after 10 years of general education and opt for Chemistry to pursue their career in basic physics or expert courses like medicine, engineering, technology, and other applied areas.

Therefore, there is a need to give learners with enough conceptual background in Chemistry, which will make them able to meet the challenges of academic and expert courses after the senior secondary stage. The new and updated curriculum is based on a disciplinary approach with rigor and depth taking care that the syllabus is not heavy and at the same time it is similar to the international level.

The knowledge linked to the subject of Chemistry has experienced tremendous changes during the past decade. Many new areas like synthetic materials, biomolecules, natural sources, industrial chemistry are coming in a big way and deserve to be an essential part of the chemistry syllabus at a senior secondary stage.

At the international level, new formulations and classification of elements and compounds, symbols, and units of physical measures floated by accurate bodies like IUPAC and CGPM are of immense importance and need to be included in the updated syllabus. The revised syllabus takes care of all these features. Greater emphasis has been laid on the use of new vocabulary, symbols, and formulations, the teaching of basic concepts, application of concepts in chemistry to business/ technology, logical sequencing of units, removal of antiquated content and repetition, etc.

Unit – I: Some Basic Concepts of Chemistry

General Introduction: Meaning and scope of chemistry.

Nature of matter, laws of a chemical compound, Dalton’s atomic theory: the concept of elements, particles, and molecules.

Atomic and molecular masses, mole theory and molar mass, percentage composition, experimental and molecular formula, chemical reactions, stoichiometry, and estimates based on stoichiometry.

Unit – II: Structure of Atom

Bohr’s model and its limitations, the concept of shells and subshells, dual nature of matter and light, de Broglie’s relation, Heisenberg uncertainty principle, the concept of orbitals, quantum quantities, shapes of s, p and d orbitals, rules for filling particles in orbitals – Aufbau principle, Pauli’s separation principle and Hund’s rule, electronic configuration of atoms, security of half-filled and filled orbitals.

Unit – III: Classification of Elements and Periodicity in Properties

Modern periodic law and the modern form of the periodic table, periodic trends in properties of ingredients -atomic radii, ionic radii, inert gas radii, Ionization enthalpy, electron gain enthalpy, electronegativity, valency. Nomenclature of components with atomic number greater than 100

Unit – IV: Chemical Bonding and Molecular structure

Valence electrons, ionic bond, bond parameters, Lewis structure, polar character of covalent bond, covalent bond, the covalent character of ionic bond, valence bond theory, resonance, geometry of covalent molecules, the concept of hybridization, VSEPR theory, involving s, p and d orbitals and shapes of some simple molecules, molecular orbital theory of homonuclear diatomic molecules(qualitative purpose only), hydrogen bond.

Unit – V: States of Matter: Gases, Liquids, and Solids

Three states of matter, intermolecular interactions, melting and boiling points, types of bonding, the role of gas laws in elucidating the concept of the molecule,  Charles law, Boyle’s law, Gay Lussac’s law, Avogadro’s law, ideal behavior, Avogadro’s number, ideal gas equation. Deviation from ideal behavior, liquefaction of gases, critical temperature, kinetic energy and molecular activities (elementary idea) Liquid State: vapour tension, viscosity and surface tension (qualitative idea only, no mathematical derivations) Solid-state: Classification of solids based on various binding forces: molecular, ionic, covalent and metallic solids, amorphous and crystalline solids (elementary idea). Unit cell in two-dimensional and three-dimensional structures, calculation of density of unit cell, packing in solids, packing efficiency, voids, number of particles per unit cell in a cubic unit cell, point defects, electrical and magnetic properties.

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