CBSE Sample Papers for Class 12 Chemistry 2023-24 board exams download in PDF, Previous years papers of CBSE examinations All India, Foreign and Delhi region 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014 compartment and main exams. The marking scheme contains hints and solutions of the questions papers. Prepare according to Current CBSE curriculum. Download NCERT Solutions 2023-24 based on latest CBSE Books and following the current CBSE Syllabus.

CBSE Sample Papers for Class 12 Chemistry

Class:12
Subject:Chemistry
Contents:CBSE Sample Papers

CBSE Sample Papers for Class 12 Chemistry in PDF

CBSE sample papers and board papers – All India, Foreign and Delhi set 1, set 2 and set 3 main and compartment exams papers to download. Ask Questions in discussion forum to solve your doubts. Download NCERT Books 2023-24 and offline apps based on latest CBSE Syllabus.

Previous Years Papers with solutions 2018

CBSE Board Papers 2017 & 2016

CBSE Board Exam Papers – 2017 Compartment Exams

CBSE Board Exam Papers – 2017 Main Exams

CBSE Board Exam Papers – 2016 Main Exams

CBSE Board Exam Papers – 2015 Compartment Exams

CBSE Board Papers 2015 & 2014
Important Questions from CBSE Board 2018

1. Give reasons for the following :
(a) Measurement of osmotic pressure method is preferred for the determination of molar masses of macromolecules such as proteins and polymers.
(b) Aquatic animals are more comfortable in cold water than in warm water.
(c) Elevation of boiling point of 1 M KCl solution is nearly double than that of 1 M sugar solution.
2. What happens when
(a) a freshly prepared precipitate of Fe(OH)3 is shaken with a small amount of FeCl3 solution ?
(b) persistent dialysis of a colloidal solution is carried out ?
(c) an emulsion is centrifuged ?
3. (a) Why is bithional added to soap ?
(b) What is tincture of iodine ? Write its one use.
(c) Among the following, which one acts as a food preservative ?
Aspartame, Aspirin, Sodium Benzoate, Paracetamol

Important Questions from CBSE Board 2017

1. Write one similarity between Physisorption and Chemisorption.
2. Define the following terms: (i) Colligative properties (ii) Molality (m)
3. Write the equations involved in the following reactions: (i) Wolff-Kishner reduction (ii) Etard reaction.

4. A 10% solution (by mass) of sucrose in water has freezing point of 269.15 K. Calculate the freezing point of 10% glucose in water, if freezing point of pure water is 273.15 K. Given: (Molar mass of sucrose = 342 g/mol) (Molar mass of glucose = 180 g/mol)
5. Write one difference in each of the following: (i) Lyophobic sol and Lyophilic sol (ii) Solution and Colloid (iii) Homogeneous catalysis and Heterogeneous catalysis.

LEARNING BASED QUESTIONS

1. Following compounds are given to you: 2-Bromopentane, 2-Bromo-2-methylbutane, 1-Bromopentane (i) Write the compound which is most reactive towards SN 2 reaction. (ii) Write the compound which is optically active. (iii) Write the compound which is most reactive towards β-elimination reaction.
2. Do the following conversions in not more than two steps: (i) Benzoic acid to benzaldehyde (ii) Ethyl benzene to Benzoic acid (iii) Prapanone to Propene.
3. Write the structures of the monomers used for getting the following polymers: (i) Dacron (ii) Melamine – formaldehyde polymer (iii) Buna-N
4. Define the following: (i) Anionic detergents (ii) Broad spectrum antibiotics (iii) Antiseptic

Last Edited: December 26, 2023