CBSE Class 12 Chemistry Boards 2020 Sample Paper Solved

Read and download PDF of CBSE Class 12 Chemistry Boards 2020 Sample Paper 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 Boards 2020 Sample Paper Solved

Chemistry Class 12 Sample Paper

CBSE Class 12 Chemistry Boards 2020 Sample Paper Solved. CBSE has recently released the class 12 sample papers for subject Chemistry. These suggested sample papers are released every year by CBSE ahead of the class 12 board exams so that the students can understand the pattern of question paper and type of questions which is expected to come in the Class 12 board exams. Students can refer to the attached question paper along with marking scheme to understand what they can expect in the board exams in 2020. Its always better to solve the question paper first and then refer to provided answers. 

SECTION - A

Read the given passage and answer the questions 1 to 5that follow:
 
A Lead storage battery is the most important type of secondary cell having a lead anode and a grid of lead packed with PbO2 as cathode. A 38% solution of sulphuric acid is used as electrolyte. (Density=1.294 g mL-1) The battery holds 3.5 L of the acid. During the discharge of the battery, the density of H2SO4 falls to 1.139 g mL-1. (20% H2SO4 by mass)
 
(1) Write the reaction taking place at the cathode when the battery is in use.
 
(2) How much electricity in terms of Faraday is required to carry out the reduction of one mole of PbO2?
 
(3) What is the molarity of sulphuric acid before discharge?
 
(4) Lead storage battery is considered a secondary cell. Why?
 
(5) Write the products of electrolysis when dilute sulphuric acid is electrolysed using Platinum electrodes.
 
Questions 6 to 10 are one word answers:
 
(6) Name the substance used as depressant in the separation of two sulphide ores in Froth floatation method.
 
(7) Name the unit formed by the attachment of a base to 1' position of sugar in a nucleoside.
 
(8) Name the species formed when an aqueous solution of amino acid is dissolved in water?
 
(9) What type of reaction occurs in the formation of Nylon 6,6 polymer?
 
(10) Which of the following compoundswould undergo cannizzaro reaction: Benzaldehyde, Cyclohexanone, 2- Methylpentanal.
 
Questions 11 to 15 are multiple choice questions:
 
(11) The IUPAC name of the compound shown below is:

 CBSE-Class-12-Chemistry-Boards-2020-Sample-Paper-Solved 1

(a) 2-bromo-6-chlorocyclohex-1-ene
 
(b) 6-bromo-2-chlorocyclohexene
 
(c) 3-bromo-1-chlorocyclohexene
 
(d) 1-bromo-3-chlorocyclohexene
 
(12) When one mole of CoCl3.5NH3 was treated with excess of silver nitrate solution, 2 mol of AgCl was precipitated. The formula of the compound is:
 
(a) [Co(NH3)5Cl2]Cl
 
(b) [Co(NH3)5Cl]Cl2
 
(c) [Co(NH3)4Cl2] (NH3)Cl
 
(d) [Co(NH3)3Cl3] (NH3)2



Please refer to link below to download CBSE Class 12 Chemistry Boards 2020 Sample Paper Solved

CBSE Class 12 Chemistry Boards 2020 Sample Paper Solved

We hope you liked the above provided CBSE Class 12 Chemistry Boards 2020 Sample Paper 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 Boards 2020 Sample Paper 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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