CBSE Class 12 Chemistry Sample Paper 2022 Set 03

Chemistry
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Official CBSE Practice Papers for Class 12 Chemistry

Explore authentic exam practice materials through the CBSE Class 12 Chemistry Sample Paper 2022 Set 03. Tailored for Class 12 learners, utilizing these Chemistry sample papers ensures thorough preparation and strengthens time management skills before final CBSE evaluations.

Solved Model Papers for Chemistry

Navigate directly to the solved Chemistry model papers using the digital viewer below. Each practice set includes detailed solutions, allowing students to instantly cross-check their work and identify areas requiring further revision.

SECTION A
 
1. How many atoms per unit cell are present in body centered unit cell? 
 
2. Write the IUPAC name of 
CBSE Class 12 Chemistry Sample Paper 2022 Set C 1
 
3. Which of the following is more stable complex and why?
[Co(NH3)6]3+ and [Co(en)3]3+
OR
Write the IUPAC name of [Fe(en)2Cl2]Cl
 
4. Is this a homo polymer or copolymer? 
CBSE Class 12 Chemistry Sample Paper 2022 Set C 2
 
5. Write the logarithmic expression of Freundlich adsorption isotherm
OR
What do you understand by electro kinetic potential?
 
SECTION B
 
6. a) Define molal elevation constant (Kb)
b) Why are the molecular masses of polymers determined by osmotic pressure method?
 
7. Show that the half-life of a first order reaction is independent of the initial concentration of the reactants.
 
8. Draw the structures of following: XeO3, H2S2O8 
 
9. 
CBSE Class 12 Chemistry Sample Paper 2022 Set C 3
10. Explain the preparation of potassium permanganate from pyrolusite ore.
OR
Complete the following equations
a) Fe2+ + Cr2O72- + H+→
b) MnO4— + S2O3 2-+H2O→
 
11. Write the structures of the monomers of the following polymers:
(a)Neoprene (b) Bakelite
 
12. Name the reagent(s) used to convert phenol to
a) benzene
b) benzoquinone
 
SECTION C
 
13. Write chemical equations when
a) Ethyl chloride is heated with silver fluoride
b) Chlorobenzene is treated with CH3COCl in the presence of anhydrous AlCl3
c) Benzyl alcohol is treated with thionyl chloride
OR
Account for the following
i) Ethyl iodide undergoes faster SN2 than ethyl bromide
ii) p-dichlorobenzene has higher melting point than those of ortho or meta isomers
iii) Haloarenes are less reactive to nucleophiles
 
14. An element crystallizes in fcc with edge length 200 pm. Calculate its density if 200grams of this element contains 24x 1023 atoms. [Na=6.023x1023]
 
15. a) What is the composition of copper matte?
b) Describe Mond’s process of refining nickel
 
16. Explain what is observed when
a) An electric current is passed through a sol
b) A beam of light is passed through a sol
c) An electrolyte is added to ferric hydroxide sol
OR
Write one difference between
i) Lyophobic and lyophilic colloids
ii) Heterogenous and homogenous catalysis
iii) Macromolecular and associated colloids
 
17. 2g of benzoic acid dissolved in 25g of benzene shows a depression in freezing point equal to 1.62K. What is the percentage association of acid if it forms dimer in solution? [Given Kf for benzene 4.9K kg/mol, molar mass of benzoic acid=122g/mol, molar mass of benzene=78g/mol]
 
18. What happens when D-glucose is treated with
a) HI   b) NH2OH   c) Br2 water
OR
What are fibrous and globular proteins? Give an example each.
 
19. Give reason for the following
a) Of the d4 species, Cr2+ is strongly reducing whereas Mn3+ is strongly oxidizing
b) Cu+ ion is not stable in aqueous solutions
c) Transition metals generally form colored compounds
 
20. a) How will you distinguish between benzoic acid and phenol?
b) Illustrate the following with chemical equations
i) Aldol condensation
ii) Gattermann-Koch reaction


Please click on below link to download CBSE Class 12 Chemistry Sample Paper 2022 Set C

Free study material for Chemistry

Exam Preparation Sample Paper for Class 12 Chemistry CBSE Class 12 Chemistry Sample Paper 2022 Set 03

Download Sample Paper: CBSE Class 12 Chemistry Sample Paper 2022 Set 03 (Class 12 Chemistry)

Review model practice papers for Class 12 Chemistry. Working through the CBSE Class 12 Chemistry Sample Paper 2022 Set 03 under simulated test conditions at home ensures complete familiarity with upcoming school evaluations.

Key Advantages of Solving CBSE Class 12 Chemistry Sample Paper 2022 Set 03

  • Exam Blueprint: Understand mark allocations and structural guidelines relevant to Class 12 evaluations.
  • Targeted Improvement: Identify weak areas in Class 12 Chemistry requiring focused revision.
  • Pacing & Precision: Practice mixed question formats to build execution speed and ensure timely paper completion.

How to Analyze Your Performance in CBSE Class 12 Chemistry Sample Paper 2022 Set 03

  1. Self-Evaluation: Score your answers using official guidance to track your academic progress.
  2. Mistake Correction: Class 12 pupils must re-solve questions answered incorrectly to master the correct method.
  3. Continuous Practice: Take additional Chemistry sample modules online to maximize preparedness for CBSE evaluations.

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How can practicing CBSE Class 12 Chemistry Sample Paper 2022 Set 03 help in exam preparation?

Practicing this Chemistry paper helps in time management and identifying important topics. For Class 12, solving mock papers is the best way to gain confidence and reduce exam-day anxiety.

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