Class 12 Chemistry questions with answers

150 NCERT Class 12 Chemistry questions with answers, chapter by chapter, from Solutions to Biomolecules.

How to teach Class 12 Chemistry · Class 12 Chemistry common misconceptions

• Chapter 1: Solutions

  15 questions · Types of solutions and concentration measures · Solubility and Henry's law for gases · Raoult's law and vapour pressure of liquid solutions · Ideal solutions, non-ideal deviations, and azeotropes · Colligative properties and relative lowering of vapour pressure · Depression of freezing point and molar-mass calculation · Elevation of boiling point and molar-mass calculation · Osmosis, osmotic pressure, tonicity, and reverse osmosis · Abnormal molar masses and the van't Hoff factor

• Chapter 2: Electrochemistry

  15 questions · Electrochemical cells, electrode processes, and cell notation · Electrochemical corrosion and its prevention · Standard electrode potentials and the electrochemical series · Nernst equation, Gibbs energy, and equilibrium · Conductivity, conductance, cell constant, and dilution trends · Kohlrausch law and ionic-conductivity applications · Electrolysis and Faraday laws · Primary cells, secondary batteries, and fuel cells

• Chapter 3: Chemical Kinetics

  15 questions · Reaction rate and stoichiometric rate expression · Rate law, order, and molecularity · Arrhenius equation and catalysis · Integrated rate equations and half-life · Collision theory and effective collisions

• Chapter 4: The d- and f-Block Elements

  15 questions · Position and electronic configuration of d-block elements · Physical properties and variable oxidation states · Potassium dichromate chemistry · Potassium permanganate chemistry · Actinoids and comparison with lanthanoids · Lanthanoids and lanthanoid contraction

• Chapter 5: Coordination Compounds

  15 questions · Werner theory and coordination terminology · Nomenclature and formulae of coordination compounds · Valence bond theory and magnetic behaviour · Crystal-field splitting, colour, and spin · Metal carbonyls, stability, and applications · Structural and stereoisomerism

• Chapter 6: Haloalkanes and Haloarenes

  15 questions · Classification, nomenclature, and the carbon–halogen bond · Preparation of haloalkanes and haloarenes · Nucleophilic substitution and stereochemistry · Elimination, organometallic formation, and coupling · Haloarene reactivity and orientation · Polyhalogen compounds and environmental effects

• Chapter 7: Alcohols, Phenols and Ethers

  15 questions · Classification, nomenclature, and structure · Commercial alcohols and safe application · Preparation of alcohols · Phenol acidity, preparation, and electrophilic substitution · Reactions and oxidation of alcohols · Ether preparation and cleavage

• Chapter 8: Aldehydes, Ketones and Carboxylic Acids

  15 questions · Carbonyl nomenclature, structure, and physical properties · Carboxylic-acid preparation, acidity, and reactions · Preparation of aldehydes and ketones · Nucleophilic addition and carbonyl derivatives · Oxidation, reduction, and distinguishing tests · Alpha-hydrogen reactions and disproportionation

• Chapter 9: Amines

  15 questions · Amine classification, structure, nomenclature, and basicity · Preparation of amines · Chemical reactions and tests of amines · Diazonium salts: preparation and replacement reactions · Azo coupling and synthetic applications

• Chapter 10: Biomolecules

  15 questions · Carbohydrate classification and structure · Amino acids and protein structure · Enzymes and biochemical catalysis · Vitamins and deficiency · Nucleic acids and genetic information · Hormones and chemical signalling