Grade 12 – Environmental Chemistry – Key Concepts in Chemistry
1. Question: Explain the concept of environmental pollution and its impact […]
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Grade 12
Grade 12 – Thermodynamics – Key Concepts in Chemistry
1. Explain the first law of thermodynamics and its significance in
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Grade 12 – Some p-Block Elements – Key Concepts in Chemistry
1. Question: Explain the anomalous properties of boron in the p-block
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Grade 12 – Hydrocarbons – Key Concepts in Chemistry
1. Question: Explain the difference between alkanes, alkenes, alkynes, and aromatic
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Grade 12 – Organic Chemistry – Some Basic Principles and Techniques – Key Concepts in Chemistry
1. Question: Explain the concept of functional groups in organic chemistry
Grade 12 – s-Block Elements – Key Concepts in Chemistry
1. Question: Discuss the electronic configuration and general characteristics of alkali
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Grade 12 – Hydrogen – Key Concepts in Chemistry
1. Explain in detail the various methods of hydrogen production, including
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Grade 12 – Redox Reactions – Key Concepts in Chemistry
1. Explain the concept of oxidation and reduction in terms of
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Grade 12 – Equilibrium – Key Concepts in Chemistry
1. Question: Explain the concept of chemical equilibrium and its significance
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Grade 12 – States of Matter – Key Concepts in Chemistry
1. Question: Explain the behavior of gases using the kinetic molecular
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Grade 12 – Excretory Products and Their Elimination – Key Concepts in Biology
1. Question: Explain the structure and function of the nephron in
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Grade 12 – Classification of Elements and Periodicity in Properties – Key Concepts in Chemistry
1. Question: Explain the periodicity in the atomic radii of elements
Grade 12 – Structure of Atom – Key Concepts in Chemistry
1. Question: Explain the Bohr’s atomic model and its limitations. Answer:
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Grade 12 – Some Basic Concepts of Chemistry – Key Concepts in Chemistry
1. What is the difference between matter and substance? Explain with
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Grade 12 – Behaviour of Perfect Gas and Kinetic Theory – Key Concepts in Physics
1. Question: Explain the concept of pressure in a gas and
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Grade 12 – Properties of Bulk Matter – Key Concepts in Physics
1. Question: Explain the concept of elasticity and its application in
Grade 12 – Properties of Bulk Matter – Key Concepts in Physics Read More »
Grade 12 – Kinematics – Key Concepts in Physics
1. Question: What is the difference between distance and displacement? Explain
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Grade 12 – Laws of Motion – Key Concepts in Physics
1. Question: Explain Newton’s First Law of Motion and provide examples
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Grade 12 – Work, Energy, and Power – Key Concepts in Physics
1. Question: Explain the concept of work done and its relationship
Grade 12 – Work, Energy, and Power – Key Concepts in Physics Read More »
Grade 12 – Motion of System of Particles and Rigid Body – Key Concepts in Physics
1. Question: Explain the concept of center of mass and its
Grade 12 – Motion of System of Particles and Rigid Body – Key Concepts in Physics Read More »
Grade 12 – Gravitation – Key Concepts in Physics
1. Question: Describe the concept of gravitational force and its relationship
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Grade 12 – Breathing and Exchange of Gases – Key Concepts in Biology
1. How is the respiratory system structured and what are its
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Grade 12 – Thermodynamics – Key Concepts in Physics
1. Explain the first law of thermodynamics and its application in
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Grade 12 – Body Fluids and Circulation – Key Concepts in Biology
1. Explain the process of erythropoiesis and its regulation in the
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Grade 12 – Oscillations and Waves – Key Concepts in Physics
1. What is the principle of superposition and how does it
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Grade 12 – Locomotion and Movement – Key Concepts in Biology
1. How does the skeletal system support locomotion and movement in
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Grade 12 – Neural Control and Coordination – Key Concepts in Biology
1. How does the nervous system coordinate and control the body’s
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Grade 12 – Chemical Coordination and Integration – Key Concepts in Biology
1. Question: Describe the structure and function of the pituitary gland
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Grade 12 – Chemical Bonding and Molecular Structure – Key Concepts in Chemistry
1. Explain the concept of chemical bonding and its significance in
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Grade 12 – Physical World and Measurement – Key Concepts in Physics
1. Explain the concept of significant figures and their importance in
Grade 12 – Physical World and Measurement – Key Concepts in Physics Read More »
Grade 12 – Respiration in Plants – Key Concepts in Biology
1. Explain the process of aerobic respiration in plants and its
Grade 12 – Respiration in Plants – Key Concepts in Biology Read More »
Grade 12 – Photosynthesis in Higher Plants – Key Concepts in Biology
1. What are the different types of photosynthetic pigments found in
Grade 12 – Photosynthesis in Higher Plants – Key Concepts in Biology Read More »
Grade 12 – Mineral Nutrition – Key Concepts in Biology
1. Explain the role of essential minerals in plant nutrition and
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Grade 12 – Transport in Plants – Key Concepts in Biology
1. Explain the process of water and mineral transport in plants,
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Grade 12 – Cell Cycle and Cell Division – Key Concepts in Biology
1. Explain the process of mitosis in detail, highlighting the key
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Grade 12 – Biomolecules – Key Concepts in Biology
1. Question: Explain the structure and functions of carbohydrates in detail,
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Grade 12 – Cell: The Unit of Life – Key Concepts in Biology
1. Explain the structure and function of the nucleus in a
Grade 12 – Cell: The Unit of Life – Key Concepts in Biology Read More »
Grade 12 – Structural Organization in Animals – Key Concepts in Biology
1. Question: Explain the concept of cell differentiation and its significance
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Grade 12 – Anatomy of Flowering Plants – Key Concepts in Biology
1. Explain the different types of tissues found in flowering plants
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Grade 12 – Morphology of Flowering Plants – Key Concepts in Biology
1. Question: Discuss the role of roots in the morphology of
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Grade 12 – Animal Kingdom – Key Concepts in Biology
1. Question: Explain the classification of animals based on their body
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Grade 12 – Plant Kingdom – Key Concepts in Biology
1. Question: Explain the basis for the classification of plants into
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Grade 12 – Biological Classification – Key Concepts in Biology
1. Question: Explain the basis of classification in the five-kingdom system.
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Grade 12 – The Living World – Key Concepts in Biology
1. Question: What is the significance of taxonomy in the field
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Grade 12 – Chemistry in Everyday Life – Key Concepts in Chemistry
1. How do antacids work to relieve acidity in the stomach?
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Grade 12 – Polymers – Key Concepts in Chemistry
1. What is the mechanism of polymerization and how does it
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Grade 12 – Biomolecules – Key Concepts in Chemistry
1. Question: Describe the structure and function of DNA in detail,
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Grade 12 – Digestion and Absorption – Key Concepts in Biology
1. How does the structure of the digestive system support the
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Grade 12 – Amines – Key Concepts in Chemistry
1. What are the different methods of preparation of amines? Explain
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Grade 12 – Plant Growth and Development – Key Concepts in Biology
1. Explain the different growth phases in plant development and the
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Grade 12 – Chemical Kinetics – Key Concepts in Chemistry
1. What is the rate determining step in a chemical reaction
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Grade 12 – Surface Chemistry – Key Concepts in Chemistry
1. Explain the concept of adsorption and its types in surface
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Grade 12 – Electrochemistry – Key Concepts in Chemistry
1. What is the significance of the Nernst equation in electrochemistry?
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Grade 12 – The p-Block Elements – Key Concepts in Chemistry
1. Explain the trends in the physical properties of group 15
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Grade 12 – General Principles and Processes of Isolation of Elements – Key Concepts in Chemistry
1. Explain the principles and processes involved in the extraction of
Grade 12 – Coordination Compounds – Key Concepts in Chemistry
1. What is the coordination number of a complex and how
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Grade 12 – Haloalkanes and Haloarenes – Key Concepts in Chemistry
1. Discuss the mechanism of nucleophilic substitution reactions in haloalkanes. Provide
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Grade 12 – Alcohols, Phenols, and Ethers – Key Concepts in Chemistry
1. Explain the classification of alcohols, phenols, and ethers based on
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Grade 12 – Aldehydes, Ketones, and Carboxylic Acids – Key Concepts in Chemistry
1. Explain the mechanism of nucleophilic addition reaction of aldehydes and
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Grade 12 – The Solid State – Key Concepts in Chemistry
1. Question: What is the significance of the packing efficiency in
Grade 12 – The Solid State – Key Concepts in Chemistry Read More »
Grade 12 – p-Block Elements – Key Concepts in Chemistry
1. Question: Explain the variation in properties of Group 14 elements
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Grade 12 – Solutions – Key Concepts in Chemistry
1. Question: Explain the concept of colligative properties and how they
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Grade 12 – The d- and f-Block Elements – Key Concepts in Chemistry
1. Explain the variation in atomic and ionic sizes of transition
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Grade 12 – Properties of Solids and Liquids – Key Concepts in Physics
1. Question: Explain the concept of elasticity in solids and liquids
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Grade 12 – Kinetic Theory of Gases – Key Concepts in Physics
1. Explain the concept of kinetic theory of gases and its
Grade 12 – Kinetic Theory of Gases – Key Concepts in Physics Read More »
Grade 12 – Optics – Key Concepts in Physics
1. Question: Explain the phenomenon of total internal reflection and its
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Grade 12 – Electrostatics – Key Concepts in Physics
1. What is the concept of electric field and how is
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Grade 12 – Current Electricity – Key Concepts in Physics
1. Question: Explain the concept of resistance and its relationship with
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Grade 12 – Magnetic Effects of Current and Magnetism – Key Concepts in Physics
1. What is the origin of magnetism in materials? Explain with
Grade 12 – Magnetic Effects of Current and Magnetism – Key Concepts in Physics Read More »
Grade 12 – Chemical Thermodynamics – Key Concepts in Chemistry
1. Explain the concept of entropy and its significance in chemical
Grade 12 – Chemical Thermodynamics – Key Concepts in Chemistry Read More »
Grade 12 – Electromagnetic Induction and AC Circuits – Key Concepts in Physics
1. Explain Faraday’s law of electromagnetic induction and its significance in
Grade 12 – Electromagnetic Induction and AC Circuits – Key Concepts in Physics Read More »
Grade 12 – Atomic Structure – Key Concepts in Chemistry
1. Explain the Bohr’s model of the atom and how it
Grade 12 – Atomic Structure – Key Concepts in Chemistry Read More »
Grade 12 – Electromagnetic Waves – Key Concepts in Physics
1. How does the speed of electromagnetic waves in vacuum compare
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Grade 12 – Some Basic Concepts in Chemistry – Key Concepts in Chemistry
1. What is the significance of Avogadro’s law in understanding the
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Grade 12 – Electronic Devices – Key Concepts in Physics
1. Question: Explain the operation of a bipolar junction transistor (BJT)
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Grade 12 – Atoms and Nuclei – Key Concepts in Physics
1. Question: Explain the concept of atomic structure and the Bohr
Grade 12 – Atoms and Nuclei – Key Concepts in Physics Read More »
Grade 12 – Dual Nature of Matter and Radiation – Key Concepts in Physics
1. Question: What is the significance of the photoelectric effect in
Grade 12 – Dual Nature of Matter and Radiation – Key Concepts in Physics Read More »
Grade 12 – Coordinate Geometry – Key Concepts in Mathematics
1. Question: Prove that the line passing through the points (2,
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Grade 12 – Matrices and Determinants – Key Concepts in Mathematics
1. Question: Explain the concept of a matrix and its various
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Grade 12 – Permutations and Combinations – Key Concepts in Mathematics
1. Explain the principle of multiplication in permutations and combinations and
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Grade 12 – Mathematical Induction – Key Concepts in Mathematics
1. Question: Prove that the sum of the first n natural
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Grade 12 – Binomial Theorem and Its Applications – Key Concepts in Mathematics
1. Question: What is the Binomial Theorem and how is it
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Grade 12 – Sequences and Series – Key Concepts in Mathematics
1. Question: Prove that the sum of an infinite geometric series
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Grade 12 – Limit, Continuity, and Differentiability – Key Concepts in Mathematics
1. Explain the concept of a limit and its importance in
Grade 12 – Limit, Continuity, and Differentiability – Key Concepts in Mathematics Read More »
Grade 12 – Integral Calculus – Key Concepts in Mathematics
1. Question: Explain the concept of definite integrals and their applications
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Grade 12 – Differential Equations – Key Concepts in Mathematics
1. Question: Explain the concept of a differential equation and its
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Grade 12 – Rotational Motion – Key Concepts in Physics
1. Question: Explain the concept of angular velocity and its relationship
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Grade 12 – Physics and Measurement – Key Concepts in Physics
1. What is the significance of measurement in physics? Provide examples.
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Grade 12 – Trigonometry – Key Concepts in Mathematics
1. Question: Prove the sum to product formula for sine functions:
Grade 12 – Trigonometry – Key Concepts in Mathematics Read More »
Grade 12 – Statistics and Probability – Key Concepts in Mathematics
1. Question: Explain the concept of probability and its applications in
Grade 12 – Statistics and Probability – Key Concepts in Mathematics Read More »
Grade 12 – Vector Algebra – Key Concepts in Mathematics
1. Question: What is the geometric interpretation of the dot product
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Grade 12 – Three-Dimensional Geometry – Key Concepts in Mathematics
1. Question: Explain the concept of a vector in three-dimensional geometry
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Grade 12 – Complex Numbers and Quadratic Equations – Key Concepts in Mathematics
1. Question: What is the geometric interpretation of complex numbers and
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Grade 12 – Sets, Relations, and Functions – Key Concepts in Mathematics
1. How can the concept of sets be used to solve
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