CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D

Read and download CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D designed as per the latest question paper pattern and Class 12 examination guidelines issued by CBSE, NCERT and KVS. The past year Question Papers for Class 12 Chemistry have been provided with solutions which will help students to assess their performance and find out topics in Chemistry Class 12 which they need to improve to get better marks in Class 12 exams. After solving these last year papers also refer to solved Sample Papers for Class 12 Chemistry available on our website to build strong understanding of the subject

Chemistry Question Paper Class 12

Students can refer to the below Class 12 Chemistry Question Paper designed to help students understand the pattern of questions that will be asked in Class 12 exams. Please download CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D

Chemistry Class 12 Question Paper

 SECTION – A
Read the given passage and answer the questions 1 to 5 that follow :
 
Colloidal particles always carry an electric charge which may be either positive or negative. For example, when AgNO3 solution is added to KI solution, a negatively charged colloidal sol is obtained. The presence of equal and similar charges on colloidal particles provide stability to the colloidal sol and if, somehow, charge is removed, coagulation of sol occurs.
Lyophobic sols are readily coagulated as compare to lyophilic sols.
 
1. What is the reason for the charge on sol particles ?
 
2. Why the presence of equal and similar charges on colloidal particles provide stability ?
 
3. Why a negatively charged sol is obtained on adding AgNO3 solution to KI solution ?
 
4. Name one method by which coagulation of lyophobic sol can be carried out.
 
5. Out of KI or K2SO4, which electrolyte is better in the coagulation of positive sol ?
 
Questions 6 to 10 are one word answers :
 
6. Name the method applied for the concentration of Bauxite ore in the extraction of Aluminium.
 
8. Write an isomer of C3H9N which gives foul smell of isocyanide when treated with chloroform and ethanolic NaOH.
 
9. Which one of the following is an antidepressant drug ?
Chloramphenicol, Luminal, Bithional
 
10. Write the name of component of starch which is water soluble.
 
Questions 11 to 15 are Multiple Choice Questions :
 
11. How many ions are produced from the complex [Co(NH3)5Cl] Cl2 in solution ?
(a) 4        (b) 2          (c) 3           (d) 5
 
12. In a lead storage battery
(a) PbO2 is reduced to PbSO4 at the cathode.
(b) Pb is oxidised to PbSO4 at the anode.
(c) Both electrodes are immersed in the same aqueous solution of H2SO4.
(d) All the above are true.
 
13. The slope in the plot of ln [R] Vs. time gives
(a) + k         (b) + k /2.303
 
(c) – k         (d)  – k /2.303
 
(where [R] is the final concentration of reactant.)
 
14. The pair [Co(NH3)4 Cl2] Br2 and [Co(NH3)4 Br2] Cl2 will show
 
(a) Linkage isomerism              (b) Hydrate isomerism
(c) Ionization isomerism           (d) Coordinate isomerism
 
15. An α-helix is a structural feature of
(a) Sucrose               (b) Polypeptides
(c) Nucleotides          (d) Starch
Please click on below link to download CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D.

More Study Material

Previous Year Question Paper Chemistry Class 12

We hope you liked the above provided CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D. To get an understanding of the type of questions which were asked in previous year exams, it is important for Class 12 students to refer to CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D that we have provided above. Students can download all the Question Papers for Class 12 Chemistry which were issued in the exams so that you can practise them and solve all types of questions which have been asked till now. If you do CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D for Class 12 Chemistry you will easily understand the way examination question papers are set by teachers.

Class 12 Chemistry Previous Year Question Papers

The past year question papers CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D covers all the topics which have been suggested by CBSE in their Class 12 Chemistry syllabus for the current year. By doing all CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D PYP (previous year papers) you will understand the regular questions and MCQ questions for Class 12 Chemistry which are always asked and learn them so that you can get full marks in those questions.

Class 12 Chemistry Model Question Paper Pdf Download

We have provided links above of CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D in Pdf format so that you can just click the links and easily download the papers with answers. On studiestoday, we have also provided a download and print option for all CBSE Class 12 Chemistry last year papers and Sample Papers for Class 12 Chemistry to make it more easy for students. You can download CBSE Class 12 Chemistry Previous Year Question Papers and Class 12 Chemistry Sample Papers in PDF absolutely free of cost.

Chemistry Previous Year Question Papers Class 12 with Solutions

We have provided CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D with solutions. You will be able to understand the type of answers which you should write in Class 12 Chemistry exams to score good marks. 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. This way you will be able to identify your weak areas and also understand how the teachers of Class 12 Chemistry set their questions in the exams.

CBSE Class 12 Chemistry Previous Year Question Papers with solutions

We have provided the last 10 years Class 12 Chemistry Question Papers. Students who want to practice question papers from all previous years can easily get them on studiestoday. We are the leading website in India from which you can download all the latest Class 12 Chemistry study material for free as per the CBSE syllabus for Class 12 Chemistry for the current academic year.
 

Where can I download CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D in Pdf

You can download CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D from StudiesToday.com

Can I download the previous year Question Papers of Class 12 Chemistry in Pdf

Yes, you can click on the links above and download Question Papers in PDFs for Class 12 for Chemistry. Click on above link to download CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D

Is the Class 12 Chemistry Question Paper available for the latest session

Yes, the CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D issued for Class 12 Chemistry have been made available here for latest academic session

How can I download and print CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D

You can easily access the link above and download CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D and save on your computer of mobile

Is there any charge for CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D

There is no charge for CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D you can download everything free

How can I improve my scores by solving CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D

Regular practice of sample question paper given on studiestoday for CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D can help you to score better marks in exams

Are there any websites that offer free CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D

Yes, studiestoday.com provides all latest CBSE Class 12 Chemistry Question Papers with answers based on the latest format issued for current academic session

Can model paper CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D be accessed on mobile devices

Yes, studiestoday provides CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D in Pdf and can be accessed on smartphones and tablets.

Are mock CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D available in multiple languages

Yes, mock CBSE Class 12 Chemistry Boards 2020 Question Paper Solved Set D are available in multiple languages, including English, Hindi