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| Classwise Science MCQ Questions with Solutions (Class 12th) | ||||||||||||||
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Class 12th Chemistry MCQ Questions
1. The Solid State
This chapter explores the nature of the solid state, distinguishing between crystalline and amorphous solids. It details crystal lattices, unit cells (BCC, FCC), and imperfections or defects in solids, which influence their properties. To test your understanding of these solid-state structures, this section provides a set of Multiple-Choice Questions (MCQs) covering all key concepts from the chapter.
2. Solutions
This chapter provides a detailed study of liquid solutions, covering various methods for expressing concentration and introducing Raoult's Law. A central theme is the study of colligative properties, including elevation in boiling point and osmotic pressure, along with the van't Hoff factor. Assess your knowledge of these quantitative topics by solving the MCQs available through the link for this chapter.
3. Electrochemistry
This chapter explores the interplay between chemical and electrical energy, covering Galvanic and Electrolytic cells. It introduces concepts like standard electrode potential ($E^\circ$), the Nernst equation, and Kohlrausch's law. Practical applications like batteries and corrosion are also detailed. Challenge your understanding of electrochemistry by attempting the Multiple-Choice Questions provided in this section.
4. Chemical Kinetics
Chemical kinetics is the study of reaction rates. This chapter introduces the rate law, the order of a reaction, and the concept of half-life ($t_{1/2}$). The temperature dependence of rates is explained using activation energy ($E_a$) and the Arrhenius equation. To help you master rate calculations and reaction mechanisms, this section offers a range of MCQs for practice.
5. Surface Chemistry
This chapter deals with phenomena occurring at surfaces, focusing on Adsorption, Catalysis, and Colloids. It details the properties of colloids like the Tyndall effect and Brownian movement. Evaluate your understanding of these interfacial phenomena by answering the Multiple-Choice Questions provided for this chapter.
6. General Principles And Processes Of Isolation Of Elements
This chapter focuses on the principles of metallurgy. It outlines the major steps in metal extraction: concentration, isolation (reduction), and refining. It illustrates these principles with the extraction of key metals like iron and aluminium (Hall-Héroult process). Test your ability to apply these metallurgical principles by attempting the set of MCQs designed for this chapter.
7. The P-Block Elements
This chapter provides an in-depth study of the p-block elements from Group 15 to Group 18. It covers the preparation and properties of important compounds like ammonia (Haber's process) and sulfuric acid (Contact process). Test your knowledge of the trends and chemical properties of these diverse elements with the set of MCQs available for this chapter.
8. The D-And F-Block Elements
This chapter covers the chemistry of the transition metals (d-block) and inner transition metals (f-block). It discusses their characteristic properties, such as variable oxidation states and the formation of coloured ions, and explains the Lanthanoid contraction. Assess your understanding of these elements by solving the MCQs provided in this section.
9. Coordination Compounds
This chapter introduces the fascinating chemistry of coordination compounds. A significant focus is on IUPAC nomenclature, isomerism, and bonding theories like Valence Bond Theory (VBT) and Crystal Field Theory (CFT). To deepen your understanding of these complex compounds, this section provides a range of Multiple-Choice Questions.
10. Haloalkanes And Haloarenes
This chapter's core lies in the chemical reactions of haloalkanes and haloarenes. It focuses on the mechanisms of nucleophilic substitution reactions ($S_N1$ and $S_N2$) for haloalkanes and the electrophilic substitution reactions for haloarenes. To practice these important organic reaction mechanisms, attempt the set of MCQs available through the link for this chapter.
11. Alcohols, Phenols And Ethers
This chapter deals with three important classes of oxygen-containing organic compounds. A key focus is the comparison of the acidity of alcohols and phenols and important named reactions like the Kolbe's and Reimer-Tiemann reactions for phenols. Reinforce your understanding of these functional groups by answering the MCQs linked here.
12. Aldehydes, Ketones And Carboxylic Acids
This chapter is dedicated to carbonyl and carboxyl compounds. It explains the mechanism of nucleophilic addition and details important named reactions like the Aldol condensation and Cannizzaro reaction for aldehydes and ketones. For carboxylic acids, it covers their acidity and characteristic reactions. Have fun testing your knowledge of these numerous reactions with the interactive MCQs provided for this chapter.
13. Amines
This chapter focuses on amines, the organic derivatives of ammonia. A major theme is the basic character of amines. A significant section is devoted to the synthetic utility of arenediazonium salts via reactions like the Sandmeyer reaction. Challenge yourself with MCQs on the chemistry of nitrogen-containing organic compounds by clicking the link for this chapter.
14. Biomolecules
This chapter explores the chemistry of life, focusing on the four major classes of biomolecules: Carbohydrates, Proteins, Nucleic Acids (DNA and RNA), and Vitamins. It discusses their structures and essential functions in living systems. Evaluate your understanding of the building blocks of life by answering the Multiple-Choice Questions provided for this chapter.
15. Polymers
This chapter introduces the world of polymers, detailing the two main types of polymerization: addition and condensation. It discusses the preparation and uses of important commercial polymers like Teflon, Nylon 6,6, and Bakelite, and introduces biodegradable polymers. Test your grasp of polymer chemistry by solving the MCQs provided for this chapter.
16. Chemistry In Everyday Life
This chapter highlights the direct impact of chemistry on our daily lives, focusing on Medicines (Drugs), Chemicals in Food, and Cleansing Agents (soaps and detergents). It provides a fascinating look at how chemical knowledge is applied to improve health and hygiene. Evaluate your understanding of applied chemistry by attempting the MCQs provided in this section.