Can you share important questions for 12th Science (HSC) Board 2025?

<p>First I will tell you please solve the previous 5-year questions and 2-3 sample papers from each subject, then there is no need for the important questions. So, go and buy a guide which contains PYQs and sample paper/mock paper. It will beneficial for you.</p><p>For the 12th Science (HSC) Board exams in 2025, it's important to focus on the major subjects like Physics, Chemistry, Mathematics, Biology, and English. Here are some important topics and question suggestions that are likely to be relevant for the exam preparation:</p><h3>Physics:</h3><ol><li>Mechanics: Laws of motion, work-energy theorem, and problems on circular motion and gravitation.<ul><li>Important questions:<ul><li>Derive the work-energy theorem.</li><li>Explain the laws of motion with examples.</li><li>A body is thrown upwards, calculate its maximum height and time of flight.</li></ul></li></ul></li><li>Electrostatics: Coulomb's law, electric potential and capacitance.<ul><li>Important questions:<ul><li>State and explain Coulomb's law with an example.</li><li>Derive the expression for the energy stored in a capacitor.</li></ul></li></ul></li><li>Optics: Refraction, lenses, and optical instruments.<ul><li>Important questions:<ul><li>Derive the lens formula and explain its significance.</li><li>Explain the working of a compound microscope.</li></ul></li></ul></li></ol><h3>Chemistry:</h3><ol><li>Organic Chemistry: Hydrocarbons, alcohols, aldehydes, and ketones.<ul><li>Important questions:<ul><li>Discuss the preparation and properties of alcohols.</li><li>Explain the mechanism of the nucleophilic substitution reaction.</li></ul></li></ul></li><li>Physical Chemistry: Chemical kinetics, surface chemistry, and equilibrium.<ul><li>Important questions:<ul><li>Derive the integrated rate equation for first-order reactions.</li><li>Define the terms adsorption and absorption, and explain their differences.</li></ul></li></ul></li><li>Inorganic Chemistry: Periodic table trends, transition elements, and coordination compounds.<ul><li>Important questions:<ul><li>Discuss the trends in ionization energy across periods and groups.</li><li>Explain the properties of transition elements with examples.</li></ul></li></ul></li></ol><h3>Mathematics:</h3><ol><li><p>Calculus: Differentiation, integration, and applications.</p><ul><li>Important questions:<ul><li>Find the derivatives of trigonometric functions.</li><li>Integrate functions involving logarithms and exponentials.</li></ul></li></ul></li><li><p>Algebra: Matrices, determinants, and quadratic equations.</p><ul><li>Important questions:<ul><li>Solve the system of linear equations using matrices.</li><li>Find the roots of a cubic equation using the factor theorem.</li></ul></li></ul></li><li><p>Vectors and 3D Geometry: Scalar product, vector product, and lines in space.</p><ul><li>Important questions:<ul><li>Find the angle between two vectors.</li><li>Prove the equation of a plane passing through three points.</li></ul></li></ul></li></ol><h3>Biology:</h3><ol><li>Genetics: Mendel's laws, genetic disorders, and biotechnology.<ul><li>Important questions:<ul><li>State and explain Mendel's laws of inheritance with examples.</li><li>Explain the process of recombinant DNA technology.</li></ul></li></ul></li><li>Human Physiology: Circulatory system, excretory system, and nervous system.<ul><li>Important questions:<ul><li>Explain the structure and functioning of the human heart.</li><li>Discuss the mechanism of excretion in humans.</li></ul></li></ul></li></ol><h3>English:</h3><ol><li><p>Prose and Poetry: Literature-based questions, character sketches, and themes.</p><ul><li>Important questions:<ul><li>Explain the central theme of any one poem you studied.</li><li>Write a character sketch of a key character from the prescribed story or drama.</li></ul></li></ul></li><li><p>Writing Skills: Comprehension, letter writing, and essay writing.</p><ul><li>Important questions:<ul><li>Write a letter to the editor of a newspaper expressing concern about pollution.</li><li>Write an essay on the importance of time management for students.</li></ul></li></ul></li></ol><p>These topics are crucial for the 12th Science exams, and practicing questions from each chapter will help you prepare effectively. Make sure to refer to your textbooks, previous years' question papers, and sample papers to get a clear understanding of the pattern and difficulty level of the questions.</p>

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