CBSE Class 12 Chemistry Sample Paper 2019 Solved

Read and download the CBSE Class 12 Chemistry Sample Paper 2019 Solved, designed by expert teachers according to the latest 2025-26 curriculum and examination pattern issued by CBSE, NCERT, and KVS. These Class 12 Chemistry sample papers include detailed step-by-step solutions, helping students to practice and evaluate their performance against the most recent marking schemes.

Solved Sample Paper for Class 12 Chemistry PDF

Our Class 12 Chemistry model papers are important for understanding the weightage of different chapters and the difficulty level of expected questions. By solving these guess papers Class 12 students can identify weak areas and improve time management. We also suggest referring to our Class 12 Chemistry Question Papers of previous years to further strengthen your exam preparation.

Class 12 Chemistry Sample Paper with Solutions

CBSE Class 12 Chemistry Sample Paper 2019 Solved. CBSE issues sample papers every year for students for class 12 board exams. Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board exams this year. The sample papers have been provided with marking scheme. It’s always recommended to practice as many CBSE sample papers as possible before the board examinations. Sample papers should be always practiced in examination condition at home or school and the student should show the answers to teachers for checking or compare with the answers provided. Students can download the sample papers in pdf format free and score better marks in examinations. Refer to other links too for latest sample papers.

Section-A

1. ZnO crystal on heating acquires the formula Zn 1+x O. Give reason.

OR

There is an increase in conductivity when Silicon is doped with Phosphorous. Give reason

2. Based on the type of dispersed phase, what type of colloids are micelles? 

3. On the basis of crystal field theory, write the electronic configuration of d6 in terms of  t2g and eg in an octahedral field when Δo < P.

OR

Low spin configuration are rarely observed in tetrahedral coordination entity formation. Explain

4. Identify the compound that on hydrogenation produces an optically active compound from the following compounds:

CBSE Class 12 Chemistry Sample Paper 2019 Solved 1

5.write the name of the biodegradable polymer used in orthopaedic devices.

Section-B
 
6. Calculate the freezing point of a solution containing 8.1 g of HBr in 100 g of water, assuming the acid to be 90 % ionized.
[Given: Molar mass Br = 80 g/mol, Kf water = 1.86 K kg / mol]
 
OR
Calculate the molality of ethanol solution in which the mole fraction of water is 0.88.
 
7. Identify the reaction and write the IUPAC name of the product formed:

CBSE Class 12 Chemistry Sample Paper 2019 Solved 2


OR
Write the structures and IUPAC names of the cross aldol condensation products only of ethanal and propanal.
 
8. (a) Justify the role of tert-butyl peroxide in the polymerization of ethene.
(b) Write the structures of the monomers of the following polymer:

CBSE Class 12 Chemistry Sample Paper 2019 Solved 3

9. Write the mechanism of acid dehydration of ethanol to yield ethane
 
10. For a certain chemical reaction variation in concentration [A] vs. time (s) plot is given below:
(i) Predict the order of the given reaction?
(ii) What does the slope of the line and intercept indicate?
(iii) What is the unit of rate constant k?


Please click the link below to download full pdf file for CBSE Class 12 Chemistry Sample Paper 2019 Solved.

How to download CBSE Class 12 Chemistry Sample Paper 2019 Solved in PDF?

Students can easily download the CBSE Class 12 Chemistry Sample Paper 2019 Solved from our website to prepare for their upcoming examinations. To score high marks, it is important for Class 12 students to understand the exaact pattern as per which teachers design the question papers. We strongly suggest that you practice these latest sample papers for Chemistry and solve different types of questions that are expected to come this year. You can downloadin PDF format so that you can practice offline. We also recommend that Class 12 students solve these papers actual exam conditions at home.

Why should you solve CBSE Class 12 Chemistry Sample Paper 2019 Solved?

Practicing these model papers has several benefits for Class 12 students:

  • New Question Bank: This set has fresh questions for Chemistry which are different from previous years.
  • Exam Pattern Knowledge: Solving more sets will help you to understand the weightage of each chapter in Class 12 and also the type of questions asked.
  • Identify Weak Areas: Comparing your score in each set to find out topics in Class 12 Chemistry for which you need hard work.
  • Speed and Accuracy: Attempting MCQ questions and long-form problems for Class 12 Chemistry makes you faster and better and you will be able to finish your exam on time.

What should you do after solving CBSE Class 12 Chemistry Sample Paper 2019 Solved?

  1. Check Your Work: Match your answers with the solutions given by our teachers in the Chemistry Sample Paper PDF.
  2. Learn from Mistakes: Class 12 students should focus on the questions which you solved incorrectly and understand the error.
  3. Revision: If you find a question difficult you shoul refer to NCERT book for Class 12 Chemistry to understand concepts and then try the question again.
  4. Continuous Practice: Solve multiple sets of Chemistry sample papers from studiestoday.com to build confidence before the CBSE exams.
Where can I download CBSE Class 12 Chemistry Sample Paper 2019 Solved in Pdf

You can download CBSE Class 12 Chemistry Sample Paper 2019 Solved from StudiesToday.com

How can I improve my scores by solving CBSE Class 12 Chemistry Sample Paper 2019 Solved

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Are there any websites that offer free CBSE Class 12 Chemistry Sample Paper 2019 Solved

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Are mock CBSE Class 12 Chemistry Sample Paper 2019 Solved available in multiple languages

Yes, mock CBSE Class 12 Chemistry Sample Paper 2019 Solved are available in multiple languages, including English, Hindi