CBSE Class 11 Chemistry Viva Questions with Answers PDF Download

CBSE Class 11 Chemistry Viva Questions Preparation Tips

• Know the purpose of the experiments you conduct in the lab, and be able to explain why certain chemicals and procedures are used.
• Review all the practicals that are part of your syllabus. You should be able to discuss each experiment, including its purpose, steps, and expected results.
• Understand the principles behind the experiment. For example, if you're performing titrations, understand why you're using a particular indicator and the concept of equivalence points.

• Be prepared to define terms and concepts such as neutralization, oxidation-reduction reactions, stoichiometry, and others that are commonly tested in the viva.
• You should be able to explain terms related to chemical bonding , molarity , pH , concentration , and precipitation reactions.

• Know the precautions you need to take for every experiment. Be ready to explain why each precaution is important.
• For instance, if you're working with acids or bases, you should be able to explain why you should wear gloves or how to safely handle the chemicals.

• Understand the types of errors that might occur during the experiment (e.g., systematic and random errors).
• Be prepared to explain how these errors can affect the results and what steps can be taken to minimize them.

• Be able to describe the observations you make during an experiment in detail. For example, what color changes you see in a titration, how the solution looks during a filtration process, etc.
• You might be asked about unexpected results or how changes in experimental conditions might affect the outcomes.

• Be ready to discuss the chemical reactions involved in your experiment. For example, if you're doing a reaction between an acid and a base, you should be able to explain the neutralization reaction .
• Understand the reaction mechanisms and how they are applied in your experiment.

• Your viva may include questions that are theoretically related to the practical you are performing. For instance, if you're working on acid-base titration , questions could also be asked about pH, pKa, and buffer solutions .
• Study the theoretical chapters in your book that correspond to the experiments. Be able to answer questions from the relevant chapters like chemical bonding , solutions , and thermodynamics .

• When explaining, speak clearly and confidently . Avoid unnecessary jargon, and focus on delivering precise answers.
• Practice explaining the experiments aloud so that you become comfortable discussing them.

• Be prepared to write and explain formulas used during your experiments. Know the units of measurement for quantities like concentration, volume, mass, etc.

• Practicing viva mock tests with friends or teachers can help. You can simulate the exam environment by asking each other questions.
• It will also help you understand the type of questions you might be asked and how to respond quickly and correctly.

• Be ready for questions that test your ability to apply knowledge to new situations. For example, you might be asked, "How would you determine the concentration of a solution if the experiment is not available to you?"
• Think about how you could use the knowledge gained in your experiment in real-life scenarios.

• If you don’t know the answer to a question, it’s better to admit it politely and try to explain the related concepts you are familiar with.
• Remaining calm and composed is key in viva. Answer confidently and try to stay on topic.