PYQ paper solution 2017 to 2022

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The documents are systematically organized by chemistry unit, providing a focused review of key topics within the subject.Topics Covered



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The documents are structured as unit-wise board paper solutions, covering a broad range of chemistry concepts. The main topics covered in the files reviewed are:

• Unit-1: SOLID STATE: Focuses on the properties of solids, crystal structures (like hcp and fcc), magnetic properties (ferromagnetic, antiferromagnetic, paramagnetic), and crystal defects. (Source: Unit-1 sell.pdf)
• Unit-6: PURIFICATION OF METAL: Covers metallurgical processes, including various concentration methods (froth flotation, magnetic separation, hydraulic washing), and refining techniques (like Van Arkel method and zone refining). It also includes questions about specific ores like Iron's ore. (Source: Unit-6 sell.pdf)
• Unit-7: P-BLOCK ELEMENTS: Discusses the chemistry of P-block elements, their electronic configuration, properties, and compounds, including oxoacids of sulfur (like Marshall's acid) and Xenon compounds. (Source: Unit-7 sell.pdf)
• Unit-16: CHEMISTRY IN EVERYDAY LIFE: Explores the chemistry of various substances used daily, such as medicines (analgesics, tranquilizers, antiseptics), artificial sweeteners, food preservatives, and different types of detergents (biodegradable and non-biodegradable). (Source: Unit-16 Sell.pdf)
• Unit-15: POLYMER: Contains questions related to polymers, their classification (linear, cross-linked), preparation of specific polymers (like Buna-N, Nylon 6,6, Teflon), and biodegradable polymers (like PHBV). (Source: Unit-15 Sell.pdf)
• Unit-3: ELECTRO CHEMISTRY: Covers concepts in electrochemistry, including electrolysis, types of cells (fuel cells, dry cells), conductivity, and Faraday's laws of electrolysis. (Source: Unit-3 sell.pdf)
• Unit-4: CHEMICHAL KINETICE: Focuses on the rate of reactions, reaction order (zero-order, first-order), half-life, and the Arrhenius equation (graphs of $\log K$ vs $1/T$). (Source: Unit-4 - sell.pdf)
• Unit-5: SURFACE CHEMISTRY: Deals with adsorption (Freundlich and Langmuir isotherms), catalysts, colloids, and the Hardy-Schulze rule for coagulation. (Source: Unit-5 sell.pdf)
• Unit-12: ALDEHYDE, KETONE AND CARBOXYLIC: Covers reactions of aldehydes and ketones (Aldol condensation, Cannizzaro reaction), relative acidity of carboxylic acids, and methods of preparation. (Source: Unit-12 Sell.pdf)
• Unit-11: ALCOHOL PHENOL AND ETHER: Includes questions on the nomenclature, isomerism, boiling points, and chemical reactions of alcohols, phenols, and ethers (like Williamson's synthesis and Reimer-Tiemann reaction). (Source: Unit-11 Sell.pdf)
• Unit-14: BIOMOLECULES: Addresses the chemistry of biological molecules such as carbohydrates (glucose, cellulose), proteins (amino acids), and vitamins (fat-soluble vs water-soluble, deficiency diseases). (Source: Unit-14 Sell.pdf)
• Unit-13: AMINES: Covers the basicity of amines, various reactions (Diazotization, Carbylamine, Hoffman bromamide degradation), and the structure of azo dyes. (Source: Unit-13 Sell.pdf)
• Unit-2: SOLUTION: Deals with properties of solutions, including colligative properties (boiling point elevation, osmotic pressure), concentration units (molality, normality), and Henry's law. (Source: Unit-2 sell.pdf)
• Unit-8: D AND F-BLOCK ELEMENTS: Explores the characteristics of d- and f-block elements, including their magnetic moments, oxidation states, atomic radii, and the lanthanoid contraction. (Source: Unit-8 Sell.pdf)

 

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