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Chemistry Practical Class 12: Understand the Concepts Better

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Last updated date: 24th Jul 2024
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Get Practical Knowledge about Class 12 Chemistry Chapters in Detail

The Chemistry Practical Class 12 exams are an essential part of the subject's assessment and play a vital role in the overall academic performance of the students. These practicals provide students with hands-on experience in conducting experiments, analyzing data, and drawing conclusions, which is critical to understanding the subject's practical applications.


The CBSE Class 12 Chemistry Practical Syllabus is divided into two sections - A and B. Section A consists of different experiments that students are required to perform during the practical exam. The experiments include topics such as qualitative analysis, salt analysis, and volumetric analysis. Section B consists of project work, which requires students to select a topic of their interest and carry out research and experimentation based on it.


The practical component of Class 12 Chemistry enables students to develop a better understanding of the theoretical concepts and principles taught in the classroom. It helps them to apply these concepts to real-life situations, thereby enhancing their knowledge and skills. Additionally, the Chemistry Practical Class 12 PDF enable students to develop essential skills such as observation, data collection, analysis, and problem-solving, which are valuable for higher education and future careers.

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What Can Chemistry Practical Class 12 Teach Students?

The CBSE Class 12 Chemistry Practical Syllabus are an essential component of the subject's assessment, which plays a vital role in evaluating the student's understanding of the subject's practical applications. The practicals test the students on various aspects such as their ability to conduct experiments, record observations, analyze data, and draw conclusions.


The practicals test the students on their understanding of the theoretical concepts taught in the classroom, and how well they can apply these concepts in real-life situations. It helps students to develop essential skills such as observation, data collection, analysis, and problem-solving, which are critical for higher education and future careers.


The Chemistry practicals and experiments can teach students various concepts, including the importance of accuracy, precision, and safety in a laboratory setting. It teaches them to be careful while handling chemicals, apparatus, and reagents, as even small errors can lead to disastrous consequences. They learn about the significance of following protocols, procedures, and ethical practices while conducting experiments, which is essential in scientific research and development.


Vedantu is an online education platform that is providing Class 12 Chemistry Practical Viva Questions with Answers PDF for the students. Along with that, students are also provided with lab manuals that detail the process involved in the experiments. Getting such information can help the students understand the subject in a much better way. 

They will be able to perform the experiments properly. Since these practical examinations for Class 12 Chemistry have significant weightage in the exams, there is no doubt the overall score of students would improve as well. So, that is one of the main reasons why students need to download the PDF files and get all the details about Chemistry Practical Class 12.


CBSE Class 12 Chemistry Practical MCQs With Answers 

1. Which of the following is a lyophobic sol?

a) Starch

b) Aluminium hydroxide

c) Egg albumin

d) Gum

Answer: b) Aluminium hydroxide


2. The process of separating solutes from a colloid solution through a semipermeable membrane is known as:


a) Dialysis

b) Emulsification

c) Coagulation

d) Precipitation

Answer: a) Dialysis


3. Which of the following is an emulsifying agent?


a) Water

b) Salt

c) Vinegar

d) Soap

Answer: d) Soap


4. The rate of reaction between Sodium Thiosulphate and Hydrochloric acid increases with:


a) Decrease in concentration of Sodium Thiosulphate

b) Decrease in concentration of Hydrochloric acid

c) Increase in concentration of Sodium Thiosulphate

d) Increase in concentration of Hydrochloric acid

Answer: c) Increase in concentration of Sodium Thiosulphate


5. Which of the following is used as an indicator in the reaction between Potassium Iodate and Sodium Sulphite?


a) Methylene blue

b) Starch solution

c) Phenolphthalein

d) Bromocresol green

Answer: b) Starch solution


6. Enthalpy of neutralisation is the heat evolved when:


a) An acid reacts with water

b) A base reacts with water

c) An acid reacts with a base

d) A salt dissolves in water

Answer: c) An acid reacts with a base


7. Enthalpy of dissolution is the heat absorbed when:


a) A solid dissolves in water

b) A gas dissolves in water

c) A liquid dissolves in water

d) A salt precipitates from a solution

Answer: a) A solid dissolves in water


8. The electrochemical cell represented by Zn/Zn2+||Cu2+/Cu is an example of:


a) Galvanic cell

b) Electrolytic cell

c) Fuel cell

d) Voltaic cell

Answer: a) Galvanic cell


9. Which of the following is an example of paper chromatography?


a) Gas chromatography

b) Column chromatography

c) Thin-layer chromatography

d) High-performance liquid chromatography

Answer: c) Thin-layer chromatography


10. The double salt of Ferrous Ammonium Sulphate is also known as:


a) Mohr's salt

b) Glauber's salt

c) Epsom salt

d) Rochelle salt

Answer: a) Mohr's salt


11. Which of the following is used for the preparation of Potassium Ferric Oxalate?


a) Ferrous sulphate and oxalic acid

b) Ferric chloride and potassium oxalate

c) Ferric chloride and oxalic acid

d) Ferrous sulphate and potassium oxalate

Answer: b) Ferric chloride and potassium oxalate


12. Which of the following compounds is prepared during the preparation of Di-benzalAcetone?


a) Acetone

b) Benzaldehyde

c) Aniline

d) p-Nitroaniline

Answer: b) Benzaldehyde


13. Which functional group is present in aldehydes?


a) -OH

b) -COOH

c) -CHO

d) -NH2

Answer: c) -CHO


14. Which of the following anions will not form a precipitate with silver nitrate?


a) Chloride

b) Sulfate

c) Carbonate

d) Acetate

Answer: d) Acetate


15. What is the purpose of using starch solution as an indicator in the reaction between Potassium Iodate (KIO3) and Sodium Sulphite: (Na2SO3)?


a) To detect the presence of iodine

b) To slow down the reaction

c) To form a colored complex with iodine

d) To detect the endpoint of the reaction

Answer: d) To detect the endpoint of the reaction.


Download Class 12 Chemistry Practical Viva Questions with Answers PDF 

The experiments in the Chemistry Practical Class 12 PDF include different sections such as Surface Chemistry, Chemical Kinetics, Thermochemistry, Electrochemistry, Chromatography, Preparation of inorganic and organic compounds, tests for functional groups in organic compounds, and qualitative analysis for cations and anions, etc. These experiments test a student's knowledge and understanding of various concepts and topics in


The practicals can also help students to understand the practical applications of Chemistry in everyday life, including the production of medicines, food preservation, and water purification. The practicals and experiments can also develop their problem-solving skills, which can benefit them in their future careers as scientists, engineers, and researchers.


Furthermore, the practicals can also teach students about the significance of teamwork and collaboration in a laboratory setting. Students learn to work in groups, communicate their findings effectively, and share their knowledge and expertise with others. This skill can help them in their future careers as they work collaboratively with other professionals to solve complex problems.


Get Better in Experimenting With Chemistry Practical Class 12 PDF 

Class 12 Chemistry practicals are an essential part of the CBSE curriculum, which enables students to gain practical experience and develop critical thinking skills necessary for pursuing higher education and careers in Chemistry and related fields. Download the Chemistry Practical Notebook Class 12 and start learning.

FAQs on Chemistry Practical Class 12: Understand the Concepts Better

1. What is the importance of practicals in CBSE Class 12?

Practical exams in CBSE Class 12 are an essential component of the curriculum and account for 30% of the total marks. Practical exams help students to apply theoretical concepts practically and understand them better. They also develop scientific skills such as observation, inference, analysis, and experimentation.

2. How should I prepare for the CBSE Class 12 Chemistry practicals?

To prepare for the CBSE Class 12 Chemistry practicals, you should first understand the concepts of each experiment and practice performing them in the lab. You can refer to your lab manual and study material for guidance. Also, you should focus on making accurate observations and keeping neat and detailed records.

3. What should I do if I face difficulty in performing an experiment during the CBSE Class 12 Chemistry practicals?

If you face difficulty in performing an experiment during the CBSE Class 12 Chemistry practicals, you should immediately seek help from your teacher or lab assistant. Do not try to handle the situation on your own, as it could lead to inaccurate results and possible safety hazards.


4. What safety precautions should I take during the CBSE Class 12 Chemistry practicals?

You should always wear safety goggles and lab coats during the CBSE Class 12 Chemistry practicals to protect your eyes and clothes. Also, you should follow all the safety instructions given by your teacher, such as handling chemicals with care, keeping flammable materials away from heat sources, and properly disposing of chemical waste.

5. What is the role of viva voce in the CBSE Class 12 Chemistry practicals?

The viva voce is an important part of the CBSE Class 12 Chemistry practicals, as it tests your understanding of the experiment and its concepts. During the viva voce, you may be asked questions related to the experiment, such as the theory behind it, the observations made, and the significance of the results.