CBSE Class 12 Chemistry Sample Paper 2019 Solved

Read and download PDF of CBSE Class 12 Chemistry Sample Paper 2019 Solved designed as per the latest curriculum and examination pattern for Class 12 issued by CBSE, NCERT and KVS. The latest Class 12 Chemistry Sample Papers have been provided with solutions so that the students can solve these practice papers and then compare their answers. This will help them to identify mistakes and improvement areas in Chemistry Class 12 which they need to study more to get better marks in Class 12 exams. After solving these guess papers also refer to solved Class 12 Chemistry Question Papers available on our website to build strong understanding of the subject

Sample Paper for Class 12 Chemistry Pdf

Students can refer to the below Class 12 Chemistry Sample Paper designed to help students understand the pattern of questions that will be asked in Class 12 exams. Please download CBSE Class 12 Chemistry Sample Paper 2019 Solved

Chemistry Class 12 Sample Paper

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?


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CBSE Class 12 Chemistry Sample Paper 2019 Solved

We hope you liked the above provided CBSE Class 12 Chemistry Sample Paper 2019 Solved. To get an understanding of the type of questions which were asked in exams, it is important for Class 12 students to understand the way sample Paper are set by teachers. Students can download the Sample Paper for Class 12 Chemistry which will be coming in the exams so that you can practise them and solve all types of questions that can be asked in exams. By doing CBSE Class 12 Chemistry Sample Paper 2019 Solved you will understand the regular questions and MCQ questions for Class 12 Chemistry which are always asked. You can download CBSE Class 12 Chemistry Sample Paper and Class 12 Chemistry Question Papers in PDF. You should attempt all the last year question paper for Class 12 and Class 12 Chemistry MCQ Test in examination conditions at home and then compare their answers with the solutions provided by our teachers.

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