CBSE Sample Question Paper for Class 12 Chemistry

Get Here free PDF download of CBSE Class 12 Chemistry Sample Papers and Model Papers to score more marks in your exams. CBSE Sample Paper for Class 12 Chemistry will give students an idea about the question paper pattern and types of questions asked in the examination. By solving these CBSE Sample Question Papers for Class 12 Chemistry , students get to know their shortcomings and while working on them, they will thereby improve their performance. Moreover, during exam time, students will feel more confident. As per new changes, CBSE had planned to take the exams annually. In exam is divided into five sections with 35 questions for 70 marks and the complete exam pattern that has been followed is as follows-
1. Section A consists of 18 Questions carrying 1 mark each [Multiple Choice Questions]
2. Section B consists of 7 questions carrying 2 marks each [Very Short Answer Questions]
3. Section C consists of 5 questions carrying 3 marks each [Short Answer Questions]
4. Section D consists of 2 Questions carrying 4 marks each [Case Based Questons]
5. Section E consists of 2 Questions carrying 5 marks each [Long Answer Questions]

Total Papers : 63

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Total Papers : 63

Class 12 Chemistry Marks Distribution
Units Marks
Solid State 23
Solutions
Electrochemistry
Chemical Kinetics
Surface Chemistry
General Principles and Processes of Isolation of Elements 19
p- Block Elements
d - and f- Block Elements
Coordination Compounds
Haloalkanes and Haloarenes 28
Alcohols, Phenols and Ethers
Aldehydes, Ketones and Carboxylic Acids
Organic Compounds containing Nitrogen
Biomolecules
Polymers
Chemistry in Everyday Life
Total 70

CBSE Class 12 Chemistry Syllabus

  • Solid State
  • Solutions
  • Electrochemistry
  • Chemical Kinetics
  • Surface Chemistry
  • General Principles and Processes of Isolation of Elements
  • p-Block Elements
  • d- and f-Block Elements
  • Coordination Compounds
  • Haloalkanes and Haloarenes.
  • Alcohols, Phenols and Ethers
  • Aldehydes, Ketones and Carboxylic Acids
  • Organic compounds containing Nitrogen
  • Biomolecules
  • Polymers
  • Chemistry in Everyday life

Unit II: Solutions 15 Periods

Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions, Raoult's law, colligative properties - relative lowering of vapour pressure, elevation of boiling point, depression of freezing point, osmotic pressure, determination of molecular masses using colligative properties, abnormal molecular mass, Van't Hoff factor.

Unit III: Electrochemistry 18 Periods

Redox reactions, EMF of a cell, standard electrode potential, Nernst equation and its application to chemical cells, Relation between Gibbs energy change and EMF of a cell, conductance in electrolytic solutions, specific and molar conductivity, variations of conductivity with concentration, Kohlrausch's Law, electrolysis and law of electrolysis (elementary idea), dry cell-electrolytic cells and Galvanic cells, lead accumulator, fuel cells, corrosion.

Unit IV: Chemical Kinetics 15 Periods

Rate of a reaction (Average and instantaneous), factors affecting rate of reaction: concentration, temperature, catalyst; order and molecularity of a reaction, rate law and specific rate constant, integrated rate equations and half-life (only for zero and first order reactions), concept of collision theory (elementary idea, no mathematical treatment), activation energy, Arrhenius equation.

Unit VIII: d and f Block Elements 18 Periods

General introduction, electronic configuration, occurrence and characteristics of transition metals, general trends in properties of the first-row transition metals – metallic character, ionization enthalpy, oxidation states, ionic radii, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation, preparation and properties of K2Cr2O7 and KMnO4.

Lanthanoids – Electronic configuration, oxidation states, chemical reactivity and lanthanoid contraction and its consequences.

Actinoids - Electronic configuration, oxidation states and comparison with lanthanoids.

Unit IX: Coordination Compounds 18 Periods

Coordination compounds - Introduction, ligands, coordination number, colour, magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination compounds. Bonding, Werner's theory, VBT, and CFT; structure and stereoisomerism, the importance of coordination compounds (in qualitative analysis, extraction of metals and biological system).

Unit X: Haloalkanes and Haloarenes. 15 Periods Haloalkanes: Nomenclature, nature of C–X bond, physical and chemical properties, optical rotation mechanism of substitution reactions.

Haloarenes: Nature of C–X bond, substitution reactions (Directive influence of halogen in monosubstituted compounds only). Uses and environmental effects of - dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT.

Unit XI: Alcohols, Phenols and Ethers 14 Periods

Alcohols: Nomenclature, methods of preparation, physical and chemical properties (of primary alcohols only), identification of primary, secondary and tertiary alcohols, mechanism of dehydration, uses with special reference to methanol and ethanol.

Phenols: Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophilic substitution reactions, uses of phenols.

Ethers: Nomenclature, methods of preparation, physical and chemical properties, uses.

Unit XII: Aldehydes, Ketones and Carboxylic Acids 15 Periods

Aldehydes and Ketones: Nomenclature, nature of carbonyl group, methods of preparation, physical and chemical properties, mechanism of nucleophilic addition, reactivity of alpha hydrogen in aldehydes, uses.

Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.

Unit XIII: Amines 14 Periods

Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary, secondary and tertiary amines.

Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.

Unit XIV: Biomolecules 18 Periods

Carbohydrates - Classification (aldoses and ketoses), monosaccharides (glucose and fructose), D-L configuration oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen); Importance of carbohydrates.

Proteins -Elementary idea of - amino acids, peptide bond, polypeptides, proteins, structure of proteins - primary, secondary, tertiary structure and quaternary structures (qualitative idea only), denaturation of proteins; enzymes. Hormones - Elementary idea excluding structure.

Vitamins - Classification and functions. Nucleic Acids: DNA and RNA.

Structure of CBSE Chemistry Sample Paper for Class 12 Science is

Type of Question Marks per Question Total No. of Questions Total Marks
Very Short Answer Type Questions 1 5 5
Short Answer Type Questions - 1 2 5 10
Short Answer Type Questions - 2 3 12 36
Value Based Type Questions 4 - 4
Long Answer Type Questions 3 5 15
Total 26 70

For Preparation of board exams students can also check out other resource material

CBSE Class 12 Chemistry Question Papers

Important Questions for Class 12 Chemistry Chapter Wise

Chemistry Revision Notes for Class 12

Previous Year Question Paper CBSE Class 12 Chemistry

Why Sample Papers?

Sample papers are the backbone of success as far as scoring high marks in exams is concerned. It is the only factor which differentiate a topper or high scoring student from the normal. However a student has studied and revised the subject but unless there are no physical tests and assessments in the form of solving some papers in a stipulated amount of time, until then nothing can be taken for granted. So in nutshell Sample papers have been the most. Sample papers have long been the most intrinsic part of study material for students.

By solving papers before the main exams have many advantages

  1. It gives every student the best practice because all the sample papers are designed according to the syllabus, timelines and other blueprint details of CBSE , thus one can say that sample papers are somewhat replica copy of the final exam board papers, so when a student solves such papers they eventually get a lot of practice before hand.
  2. It tests the preparation level of students before they appear for final exams. If a student performs well while attempting sample papers then their moral boost goes high which is good before exams, and if they perform badly then they get the chance to resurrect things before it is too late.
  3. Solving sample papers break the procrastination and anxiety shackles that most students get into just before exam days are approaching. The fear of unknown seeps into their work and destroys whatever a student has toiled for.
  4. If a student has mistakenly got over confident , the sample papers are the best way to show the mirror to such students. Because in over confidence sometimes anyone thinks that he or she knows the topic and can solve any question related to that topic but when they actually sit down in the exams and answer such questions based on that particular topic and commits silly mistakes which normally they wouldn’t do, and thus they get realisation and their is scope for rectification, because otherwise if such mistakes are directly committed in main final exams then there is no looking back and anyone is bound to get less marks then they deserve.
  5. This is the most important point, once you start practicing you are able to identify your strong and weak areas. We have seen some students prefer to do long answer questions at the beginning of the exam and some prefer to do short answer questions as they think they will get tired by the time they start to answer long answer questions. During your practice sessions are able to identify this and will accordingly apply the technique during the exams.

Now one can find numerous resources from where the sample papers can be easily obtained for any particular class and subject that one wants for. Prior to the board exams, the central board of school education themselves issues many sample papers for every subject in both for class 10 and class 12, This mainly helps every student to understand the pattern of the board examination question paper along with the weightage of marks. These sample papers are available on the CBSE website. One can also buy the sample papers from the market from any good bookstore or can download free sample papers from our ribblu.com

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