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PCB (Physics, Chemistry, Biology)

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Higher Secondary Education

The PCB (Physics, Chemistry, Biology) stream focuses on subjects essential for students pursuing careers in the medical and biological sciences. Here’s a detailed overview of the subjects typically covered in the PCB stream, especially in Classes 11 and 12:

1. Physics

Class 11:

  • Physical World and Measurement:

    • Nature of Physical World: Scope and excitement of physics; fundamental concepts.
    • Units and Measurements: SI units, dimensional analysis, accuracy, and precision.
  • Kinematics:

    • Motion in One Dimension: Speed, velocity, acceleration, and equations of motion.
    • Motion in Two Dimensions: Projectile motion, circular motion, and relative velocity.
  • Laws of Motion:

    • Newton’s Laws of Motion: Laws, force, and applications.
    • Friction: Types, laws, and effects.
  • Work, Energy, and Power:

    • Work: Definition, work done by a force, and work-energy theorem.
    • Energy: Types (kinetic, potential), conservation, and power.
  • Motion of System of Particles and Rigid Body:

    • Center of Mass: Concept, motion, and applications.
    • Rotational Motion: Torque, angular momentum, and dynamics.
  • Gravitation:

    • Universal Law of Gravitation: Law, gravitational constant, and acceleration due to gravity.
    • Kepler’s Laws: Orbital motion, satellite dynamics.
  • Properties of Bulk Matter:

    • Mechanical Properties: Stress, strain, Young’s modulus, and elastic behavior.
    • Thermal Properties: Heat, specific heat, and thermal expansion.
  • Thermodynamics:

    • Laws of Thermodynamics: Zeroth, first, and second laws, heat engines, and entropy.
  • Behaviour of Perfect Gas and Kinetic Theory:

    • Kinetic Theory of Gases: Assumptions, gas laws, and molecular speed.
  • Oscillations and Waves:

    • Oscillations: Simple harmonic motion, damping, and resonance.
    • Waves: Types, wave equation, sound waves.

Class 12:

  • Electrostatics:

    • Electric Charges: Coulomb’s law, electric field, and potential.
    • Capacitors: Capacitance, capacitors in series and parallel, energy stored in a capacitor.
  • Current Electricity:

    • Ohm’s Law: Resistance, resistivity, circuits.
    • Electrical Circuits: Series and parallel circuits, Kirchhoff’s laws.
  • Magnetic Effects of Current and Magnetism:

    • Magnetic Field: Sources, magnetic field due to current, Ampere’s law.
    • Electromagnetic Induction: Faraday’s laws, Lenz’s law, self-inductance.
  • Electromagnetic Waves:

    • Electromagnetic Spectrum: Properties, applications, and wave equation.
    • Wave Optics: Interference, diffraction, and polarization.
  • Optics:

    • Ray Optics: Reflection, refraction, lenses, mirrors.
    • Optical Instruments: Microscopes, telescopes.
  • Dual Nature of Matter and Radiation:

    • Photoelectric Effect: Einstein’s photoelectric equation, wave-particle duality.
    • De Broglie Hypothesis: Matter waves.
  • Atoms and Nuclei:

    • Atomic Models: Rutherford’s, Bohr’s models, nuclear physics.
    • Radioactivity: Types, decay laws, and applications.
  • Electronic Devices:

    • Semiconductors: PN junction, diodes, transistors, applications.

2. Chemistry

Class 11:

  • Some Basic Concepts of Chemistry:

    • Matter and Its Classification: Elements, compounds, mixtures.
    • Mole Concept: Avogadro’s number, mole calculations, stoichiometry.
  • Structure of Atom:

    • Atomic Models: Dalton’s theory, Bohr’s model, quantum mechanical model.
    • Subatomic Particles: Protons, neutrons, electrons, properties.
  • Classification of Elements and Periodicity in Properties:

    • Periodic Table: Modern periodic law, periodic trends, groups.
  • Chemical Bonding and Molecular Structure:

    • Types of Bonds: Ionic, covalent, metallic bonding.
    • Molecular Geometry: VSEPR theory, hybridization, bonding theories.
  • States of Matter:

    • Gaseous State: Gas laws, kinetic theory, real gases.
    • Liquid and Solid States: Properties, phase changes, intermolecular forces.
  • Thermodynamics:

    • Thermodynamic Laws: Enthalpy, entropy, Gibbs free energy.
  • Equilibrium:

    • Chemical Equilibrium: Le Chatelier’s principle, equilibrium constant, applications.
  • Redox Reactions:

    • Oxidation-Reduction: Redox reactions, balancing equations, electrochemical cells.
  • Hydrogen:

    • Properties and Compounds: Hydrogen properties, hydrogen compounds.
  • s-Block Element (Alkali and Alkaline Earth Metals):

    • Properties and Reactions: Characteristics, reactions of s-block elements.
  • Some p-Block Elements:

    • Properties and Reactions: Study of p-block elements and their compounds.
  • Organic Chemistry – Some Basic Principles and Techniques:

    • Organic Compounds: Nomenclature, isomerism, reaction mechanisms.
  • Environmental Chemistry:

    • Environmental Issues: Pollution, greenhouse gases, waste management.

Class 12:

  • Solid State:

    • Properties and Classification: Types of solids, unit cells, crystal lattices.
  • Solutions:

    • Concentration Terms: Molarity, molality, solution preparation.
    • Colligative Properties: Boiling point elevation, freezing point depression.
  • Electrochemistry:

    • Electrochemical Cells: Galvanic cells, electrolysis, electroplating.
  • Chemical Kinetics:

    • Rate of Reactions: Rate laws, activation energy, reaction mechanisms.
  • Surface Chemistry:

    • Adsorption and Catalysis: Types of adsorption, catalysts, applications.
  • General Principles and Processes of Isolation of Elements:

    • Metallurgy: Extraction of metals, reduction methods, refining.
  • p-Block Elements:

    • Detailed Study: Properties, reactions, and applications of p-block elements.
  • d and f Block Elements:

    • Transition Metals: Properties, uses, and compounds of d-block elements.
    • Lanthanides and Actinides: Properties and uses of f-block elements.
  • Coordination Compounds:

    • Coordination Chemistry: Ligands, coordination number, isomerism.
  • Haloalkanes and Haloarenes:

    • Properties and Reactions: Preparation and reactions of haloalkanes and haloarenes.
  • Alcohols, Phenols, and Ethers:

    • Properties and Reactions: Types, synthesis, reactions of alcohols, phenols, and ethers.
  • Aldehydes, Ketones, and Carboxylic Acids:

    • Functional Groups: Properties, reactions, applications of aldehydes, ketones, and carboxylic acids.
  • Organic Compounds Containing Nitrogen:

    • Nitrogen Compounds: Amines, nitriles, reactions.
  • Biomolecules:

    • Macromolecules: Carbohydrates, proteins, nucleic acids.
  • Polymers:

    • Types and Properties: Classification, synthesis, applications of polymers.
  • Chemistry in Everyday Life:

    • Applications: Role of chemistry in medicine, food, household products.

3. Biology

Class 11:

  • Diversity in Living World:

    • Classification: Five kingdoms, classification systems, and taxonomy.
    • Plant Kingdom: Characteristics, classification, and examples of plant groups.
    • Animal Kingdom: Classification, characteristics, and examples of animal phyla.
  • Structural Organisation in Animals and Plants:

    • Animal Tissues: Types, structure, and functions (epithelial, connective, muscular, nervous).
    • Plant Tissues: Types, structure, and functions (meristematic, permanent).
  • Cell Structure and Function:

    • Cell Theory: Basic concepts, cell organelles, and their functions.
    • Cell Division: Mitosis, meiosis, and their significance.
  • Plant Physiology:

    • Transport in Plants: Water, minerals, and nutrients transport mechanisms.
    • Photosynthesis: Process, factors affecting, and importance.
    • Respiration: Types, processes, and energy production.
  • Human Physiology:

    • Digestion and Absorption: Digestive system, digestive enzymes, and nutrient absorption.
    • Breathing and Exchange of Gases: Respiratory system, gas exchange, and respiration processes.
    • Body Fluids and Circulation: Blood, lymph, and circulatory system.
    • Excretory Products and their Elimination: Excretory system and waste elimination.
    • Locomotion and Movement: Musculoskeletal system, types of movement.

Class 12:

  • Reproduction:
    • Human Reproduction: Male and female reproductive systems, gametogenesis, fertilization, pregnancy.