Last Updated on December 4, 2024 by XAM CONTENT
Hello students, we are providing case study questions for class 10 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 10 science. In this article, you will find case study questions for cbse class 10 science chapter 1 Chemical Reactions and Equations.
| Chapter | Chemical Reactions and Equations |
| Type of Questions | Case Study Questions |
| Nature of Questions | Competency Based Questions |
| Board | CBSE |
| Class | 10 |
| Subject | Science |
| Useful for | Class 10 Studying Students |
| Answers provided | Yes |
| Difficulty level | Mentioned |
| Important Link | Class 10 Science Chapterwise Case Study |
Case Study Questions on Chemical Reactions and Equations
Questions
Question 1:
Rahul is a skilled painter. He mixed a white coloured powder, compound X with water. The compound X reacted vigorously with water to produce a compound Y and a large amount of heat. Then, Rahul used the compound Y for white washing the walls. Customer was not satisfied with the work of Rahul as walls were not shining. But Rahul guaranteed him that the walls would shine after 2-3 days and after 3 days of whitewash, the walls became shiny.
Read the above passage carefully and give the answer to the following questions:
Q 1. Name the compound X, that Rahul mixed with water.
Difficulty Level: Medium
Ans. The compound X is calcium oxide (CaO).
Q 2. Name the compound Y, that Rahul got after mixing X with water.
Difficulty Level: Medium
Ans. Compound Y is calcium hydroxide.
Q 3. What type of reaction has occurred here?
Difficulty Level: Easy
Ans. Combination reaction
Q 4. Write the chemical reaction responsible for shiny finish of the walls.
Difficulty Level: Medium
Ans. Ca (OH)2 (aq) + CO2 (g) → CaCO3 (s) + H2O (l)
Q 5. Write the common name of X and Y.
Difficulty Level: Medium
Ans. Common name of CaO (X) is quick lime and that of Ca(OH)2 is slaked lime.
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Topics from which case study questions may be asked
- Understand the concept of chemical reactions and their importance in daily life.
- Learn to write chemical equations for different types of chemical reactions.
- Master the skill of balancing chemical equations.
- Identify and classify different types of chemical reactions, such as combination, decomposition, displacement, double displacement, and redox reactions.
- Explore the concepts of oxidation and reduction in chemical reactions.
- Understand the phenomena of corrosion and rancidity and their prevention methods.
- Recognize the applications of chemical reactions in various industries and everyday scenarios.
- Develop critical thinking skills by analyzing and predicting the outcomes of chemical reactions.
- Appreciate the role of chemical reactions in environmental processes and human activities.
This chapter deals with introducing students to the fundamental concepts of chemical reactions, equations, and their implications.
Important Links for CBSE Class 10 Science Chapter 1 Chemical Reactions and Equations
- Download 59 Important Questions for Chemical Reactions and Equations
- Download Chapter Test for Chemical Reactions and Equations
Helpful Links for CBSE Class 10 Science Preparation
- Download 125 Important Case Study Questions for CBSE Class 10 Science
- Download 220 Important Assertion Reason Questions for CBSE Class 10 Science
- Download 225 Practical Based Questions for CBSE Class 10 Science
- Download 65 Important Numerical Problems for CBSE Class 10 Physics
- Download 60 Important Diagram Based Questions for CBSE Class 10 Physics
- Download 150 Most Repeated Questions for CBSE Class 10 Science
- Download Chapter Test for CBSE Class 10 Science
Frequently Asked Questions (FAQs) on Chemical Reactions and Equations Case Study Questions
Q1: What are case study questions for CBSE examinations?
A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.
Q2: Why are case study questions important for understanding class 10 science chapters?
A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.
Q3: How should students approach answering case study questions for CBSE?
A3: Students should carefully read the case study, identify the key issues or problems presented, analyze the information provided, apply relevant concepts and principles of chemical reactions and equations, and formulate well-supported solutions or responses.
Q4: Are there any resources available online for students to practice case study questions on class 10 science chapters for CBSE exams?
A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our website to access these questions and enhance your learning experience. If you need more case study questions for your preparation, then you visit Physics Gurukul website.
Q5: How can students effectively prepare for case study questions on chemical reactions and equations for CBSE exams?
A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.
Q6: How can teachers incorporate case study questions on chemical reactions and equations class 10 science into classroom teaching?
A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of chemical reactions and equations.
Q7: Name the law based on which chemical equations must be balanced.
A7: Law of conservation of mass. Mass can neither be created nor can it be destroyed during a chemical reaction.
Q8: List any two observations when ferrous sulphate is heated in a dry test tube.
A8: (i) Initial light green colour changes to reddish brown colour.
(ii) Colourless gas is evolved.
(iii) Gas with choking smell is evolved
Q9: Why do silver articles become black after some time, when exposed to air?
A9: They get tarnished by reacting with atmospheric air to form silver sulphide.
Q10: Give reason why do chips manufacturers usually flush bags of chips with gas such as nitrogen?
A10: To prevent the oil and fats of the chips from being oxidized or become rancid.
