case study type questions class 10 science

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Case Study Questions Class 10 Science

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Download Case study questions for CBSE class 10 Science in PDF format from the myCBSEguide App . We have the new pattern case study-based questions for free download. Class 10 Science case study questions

This article will guide you through:

What are case study questions?

• Sample Papers with Case Study questions
• Class 10 Science Case Study question examples
• How to get case-based questions for free?
• How to attempt the case-based questions in Science?

Questions based on case studies are some real-life examples. The questions are asked based on a given paragraph i.e. Case Study.  Usually, 4-5 questions are asked on the basis of the given passage. In most cases, these are either MCQs or assertion & reason type questions. Let’s take an example to understand. There is one paragraph on how nitrogen is generated in the atmosphere. On the basis of this paragraph, the board asks a few objective-type questions. In other words, it is very similar to the unseen passages given in language papers. But the real cases may be different. So, read this article till the end to understand it thoroughly.

What is CBE?

CBSE stands for competency-based education. The case study questions are part of this CBE. The purpose of CBE is to demonstrate the learning outcomes and attain proficiency in particular competencies.

Questions on Real-life Situations

As discussed the case study questions are based on real-life situations. Especially for grade 10 science, it is very essential to have the practical knowledge to solve such questions. Here on the myCBSEguide app, we have given many such case study paragraphs that are directly related to real-life implications of the knowledge.

Sample Papers with Case Study Questions

Class 10 Science Sample Papers with case study questions are available in the myCBSEguide App . There are 4 such questions (Q.No.17 to 20) in the CBSE model question paper. If you analyze the format, you will find that the MCQs are very easy to answer. So, we suggest you, read the given paragraph carefully and then start answering the questions. In some cases, you will find that the question is not asked directly from the passage but is based on the concept that is discussed there. That’s why it is very much important to understand the background of the case study paragraph.

CBSE Case Study Sample Papers

You can download CBSE case study sample papers from the myCBSEguide App or Student Dashboard. Here is the direct link to access it.

Case Study Question Bank

As we mentioned that case study questions are coming in your exams for the last few years. You can get them in all previous year question papers issued by CBSE for class 1o Science. Here is the direct link to get them too.

Class 10 Science Case Study Question Examples

As you have already gone through the four questions provided in the CBSE model question paper , we are proving you with other examples of the case-based questions in the CBSE class 10 Science. If you wish to get similar questions, you can download the myCBSEguide App and access the Sample question papers with case study-type questions.

Case-based Question -1

Read the following and answer any four questions: Salt of a strong acid and strong base is neutral with a pH value of 7. NaCl common salt is formed by a combination of hydrochloride and sodium hydroxide solution. This is the salt that is used in food. Some salt is called rock salt bed of rack salt was formed when seas of bygone ages dried up. The common salt thus obtained is an important raw material for various materials of daily use, such as sodium hydroxide, baking soda, washing soda, and bleaching powder.

• Phosphoric acid
• Carbonic acid
• Hydrochloric acid
• Sulphuric acid
• Blue vitriol
• Washing soda
• Baking soda
• Bleaching powder

Case-based Question -2

• V 1  + V 2  + V 3
• V 1  – V 2  +V 2
• None of these
• same at every point of the circuit
• different at every point of the circuit
• can not be determined
• 20 3 Ω 203Ω
• 15 2 Ω 152Ω

Case-based Question -3

• pure strips
• impure copper
• refined copper
• none of these
• insoluble impurities
• soluble impurities
• impure metal
• bottom of cathode
• bottom of anode

How to Attempt the Case-Based Questions in Science?

Before answering this question, let’s read the text given in question number 17 of the CBSE Model Question Paper.

All living cells require energy for various activities. This energy is available by the breakdown of simple carbohydrates either using oxygen or without using oxygen.

See, there are only two sentences and CBSE is asking you 5 questions based on these two sentences. Now let’s check the first questions given there.

Energy in the case of higher plants and animals is obtained by a) Breathing b) Tissue respiration c) Organ respiration d) Digestion of food

Now let us know if you can relate the question to the paragraph directly. The two sentences are about energy and how it is obtained. But neither the question nor the options have any similar text in the paragraph.

So the conclusion is, in most cases, you will not get direct answers from the passage. You will get only an idea about the concept. If you know it, you can answer it but reading the paragraph even 100 times is not going to help you.

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CBSE Class 10 Science Case Study Questions Download Free PDF

If you are looking for the CBSE Class 10 Science Case Study Questions in PDF, then you are in the right place. CBSE 10th Class Case Study for the Science Subject is available here. These Case studies can help the students to solve the different types of questions that are based on the case study.

CBSE Board will be asking case study questions based on Science subjects in the upcoming board exams. Thus, it becomes an essential resource to study. 

The Science Subject case study for class 10th covers a wide range of chapters from the Science. Students willing to score good marks in their board exams can use it. The questions are highly interactive and it allows students to use their thoughts and skills to solve such kinds of questions.

Case Study Questions Class 10 Science

In board exams, students will find the questions based on assertion and reasoning . Also, there will be a few questions based on case studies. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

• Case Study Questions for Chapter 1 Chemical Reactions and Equations
• Case Study Questions for Chapter 2 Acids, Bases, and Salts
• Case Study Questions for Chapter 3 Metals and Non-Metals
• Case Study Questions for Chapter 4 Carbon and Its Compounds
• Case Study Questions for Chapter 5 Periodic Classification of elements
• Case Study Questions for Chapter 6 Life Processes
• Case Study Questions for Chapter 7 Control and Coordination
• Case Study Questions for Chapter 8 How do organisms reproduce?
• Case Study Questions for Chapter 9 Heredity and Evolution
• Case Study Questions for Chapter 10 Light reflection and refraction
• Case Study Questions for Chapter 11 Human eye and colorful world
• Case Study Questions for Chapter 12 Electricity
• Case Study Questions for Chapter 13 Magnetic effects of current
• Case Study Questions for Chapter 15 Our Environment

The above  Case studies  for CBSE Class 10 Science will help you to score good marks in the Case Study questions that have been coming in your examinations. These CBSE Class 10 Science Case Study have been developed by experts of cbseexperts.com   for benefit of Class 10 students.

Class 10 Science Assertion and Reason Questions

Case Study Type Questions in Science Class 10

Case Study Type Questions in Science Class 10 include the information or data. Students willing to solve them are required to read the passage carefully and then solve them. While solving the paragraph the ideal way is to highlight the key information or given data.

Because later it will ease them to write the final answers. Science Case study type questions consist of 4 to 5 questions that should be answered in an MCQ manner. 

While reading the paragraph students will get the clue in between about the possible answer of the question. They should definitely highlight those questions. This is the best way to solve such kind of Case study Type Questions.

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Important CBSE Class 10 Case Study Based Questions 2024: Source-Based Questions & Answers for Quick Revision

Important case study questions for cbse class 10: practice important case study/source-based questions from essential themes of cbse class 10. these source-based questions are important for the upcoming cbse class 10  board exam 2024..

CBSE Class 10 Exam 2024: CBSE Class 10 introduces Case Study Based Questions to enhance students' analytical and problem-solving skills. These questions present real-life scenarios or situations, triggering students to apply their knowledge to solve them. Overall, Case Study Based Questions are a valuable addition to the CBSE curriculum, encouraging active learning and preparing students for real-life challenges.

CBSE Class 10 Case Study Based Questions 2024

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Case Study Questions Class 10 Science The Human Eye and Colourful World

Case study questions class 10 science chapter 11 the human eye and colourful world.

At Case Study Questions there will given a Paragraph. In where some Important Questions will made on that respective Case Based Study. There will various types of marks will given 1 marks, 2 marks, 3 marks, 4 marks.

Case study 1

As we know that, the ciliary muscles are responsible for change in focal length of the eye lens. And this ability of eye lens to change the focal length is referred as accommodation. The least distance of distinct vision of normal eye is a about 25 cm and the far point of normal eye is found to be at infinity. Because of refractive defects of vision in human being 3 defects are possible they are myopia, hypermetropia and presbyopia. In case of myopia, person is able to see nearby objects clearly but cannot able to see distant objects distinctly. In this defect, the image is formed in front of retina and hence to correct this defect concave lens which is a diverging lens of suitable power is used to form the image on the retina. In case of hypermetropia, the person is not able to see nearby objects clearly but he is able to see distant objects distinctly. And hence in this case, the image is formed behind the retina because of that to correct this defect convex lens which is converging lens of suitable power is used to form the image on the retina.

Presbyopia is the defect of vision which occurs with ageing. Such person is not able to see nearby objects clearly and distinct objects distinctly without proper eye glasses. The persons which are suffering from both myopia and hypermetropia uses bi-focal lenses.

Questions :

1) Which reasons are responsible for myopia?

2) Hypermetropia is also called as?

3) A student who is sitting on the first bench in the class is not able to see what is written on the board. The student is suffering from which defect and which type of lens is suitable for him?

4) What is cataract?

1) The defect myopia occurs because of excessive curvature of eye lens and elongation of the eye balls.

2) Hypermetropia is also called as far-sightedness because person suffering from hypermetropia is able to see distant objects clearly but cannot able to see nearby objects clearly.

3) The student sitting on the first bench in the class is not able to see what is written in the board because that student is suffering from hypermetropia in which person is able to see distant objects distinctly but cannot able to see nearby objects clearly. And hence to correct his defect he should have to use convex lens of suitable power.

4) Sometimes, at old age the crystalline lens of people becomes cloudy and milky and that condition is called as cataract because of which the person may lose partial or complete vision. And it is cured by cataract surgery only.

Case study 2

There are various natural  phenomenon associated with light. Refraction of light is the phenomenon in which when light travels from one transparent medium to another transparent medium it changes its direction. The change in direction of light is due to the change in velocity of light in different media. And hence the path of the light also changes in different media. In case of refraction of light through rectangular glass slab we must observe that the incident ray and the emergent ray are parallel to each other. We can see the pencil immersed in water as bent at the water air interface only because of the refraction of light. Again second phenomenon is dispersion of light in which white light when passed through the prism it splits into seven coloured spectrum. And these seven colours are VIBGYOR. We can see here the angle of deviation is different for different colour because different wavelengths of different colour. Also, Newton observed that when second prism is placed inverted to first prism the white light incident on the first prism will come out as white light only when emerges out from second prism. The phenomenon of formation of rainbow is also because of the dispersion of light. In that case the tiny water droplets acts as prism.

But most importantly, the refraction of light occurs only because of the change in refractive index of medium. The twinkling of stars is due to the atmospheric refraction of light.

1) Rainbow formation takes place because of which phenomenon related to light?

2) What is mean by total internal reflection?

3) Why atmospheric refraction occurs?

4) For which colour the angle of deviation is more in case of dispersion?

1) Rainbow is formed because of total internal reflection of light, dispersion of light and refraction of light.

2) When a ray of light travels from one medium to other, if the angel of incidence is greater than the critical angle then the incident light get reflected totally in the same medium is called as total internal reflection.

3) The atmosphere contains different layers which contains hot and cold air. The hotter air is lighter than the cooler air. And hence the refractive index of hot air is less than the cooler air. As there is continuous change in refractive index of different layers of atmosphere, the atmospheric refraction takes place.

4) The angel of deviation is more for violet colour. And it decreases from violet to red in VIBGYOR.

Case study 3

The Tyndall effect is related to scattering of light. The blue colour of the sky, colour of water in the deep sea, the reddish colour of sun at sunrise and sunset are the colourful phenomenon of light related to scattering. The spreading of light when it strikes to small dust particles, smoke particles which are present in the air is called as scattering of light. When we will send the beam of light through the true solution we will observe the path of beam is not visible. While in case of colloidal solution the path of the beam is visible because of colloidal particles which are somewhat larger in size. We know that atmosphere contains large number of very small particles it means it is a heterogeneous mixture which contains smoke particles, tiny water droplets, suspended particles of dust and air. When light passes through such a heterogeneous mixture the path of the light becomes visible because it strikes with such particles. This effect is called as Tyndall effect. Sometimes we can see the visible beam of light entering into the smoke filled room through a small hole. In canopy of dense forest also, the light coming shows the visible path. Here the scattering of light is due to the water droplets present in the mist. In case of scattering of light, if the particles are having very small size then the light scattered more is of shorter wavelength that is blue colour and scattered red light is less of longer wavelength.

1) The reddening of the sun at sunset and sunrise is because of

a) Dispersion of light

b) scattering of light

c) refraction of light

d) total internal reflection of light

2) Which colour is having longest wavelength?

3) The advance sunrise and delayed sunset are because of

a) Scattering of light

b) dispersion of light

c) reflection of light

d) atmospheric Refraction of light

4) Which coloured light scatter more and why?

2) The red colour is having longest wavelength and wavelength increases from violet to red in the sequence VIBGYOR.

4) The blue coloured light scatter more because the wavelength of blue colour light is shortest. And scattering of light increases as the wavelength of light decrease.

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CBSE Class 10th - SCIENCE : Chapterwise Case Study Question & Solution

In board exams, students will find the questions based on assertion and reasoning. Also, there will be a few questions based on case studies. In that, a paragraph will be given, and then the MCQ questions based on it will be asked. For Science subjects, there would be 5 case-based sub-parts questions, wherein a student has to attempt 4 sub-part questions.

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Case Study Questions Class 10 Science Chapter 2 Acids, Bases, and Salts

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• Post category: class 10th
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CBSE Board Exam is on the way, so you must practice some good Case Study Questions Class 10 Science to boost your preparation to score 95+% on Boards. In this post, you will get Case Study and Passage Based Questions that will come in CBSE Class 10 Science Board Exams.

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In CBSE Class 10 Science Paper, Students will have to answer some questions based on  Assertion and Re a son . There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

Acids, Bases, and Salts Case Study Questions With Answers

Here, we have provided case-based/passage-based questions for Class 10 Science  Chapter 2 Acids, Bases, and Salts

Case Study/Passage-Based Questions

Case Study 1:

A compound, X of sodium forms a white powder. It is a constituent of baking powder and is used in some antacids. When heated it gives a compound, Y which is anhydrous and absorbs water to become a hydrated salt. When this salt is kept in the open air, it loses water molecules in a process called efflorescence. When dissolved in water it forms a strong base and a weak acid, Z.

(i) What is the compound, X?

Answer: (c) NaOH.

(ii) The compound, Y is

Answer: (c) Na2CO3.10H2O

(iii) What is the nature of the solution formed by dissolving Y in water?

Answer: (a) Alkaline

(iv) Identify the compound, Z.

Answer: (b) H2CO3

(v) Sodium carbonate is a basic compound because it is a salt of a

Answer: (c) strong acid and weak base

Case Study 2:

pH is quite useful to us in a number of ways in daily life. Some of its applications are:

Control of pH of the soil : Plants need a specific pH range for proper growth. The soil may be acidic, basic, or neutral depending upon the relative concentration of H* and OH-. The pH of any soil can be determined by using pH paper. If the soil is too acidic, it can be corrected by adding lime to it. If the soil is too basic, it can be corrected by adding organic manure which contains acidic materials.

Regaining shine of a tarnished copper vessel by use of acids :  A copper vessel gets tarnished due to formation of an oxide layer on its surface. On rubbing lenion on the vessel, the surface is cleaned and the vessel begins to shine again. This is due to the fact that copper oxide is basic in nature, which reacts with the acid (citric acid) present in lemon to form a salt (copper citrate) which is washed away with water. As a result, the layer of copper oxide is removed from the surface of the vessel and the shining surface is exposed.

Self-defence by animals through chemical warfare :  Stings of bees and ants contain methanoic acid. When stung, it causes lot of pain and irritation. This can be cured by rubbing the affected area with mild base like baking soda.

(i) When black copper oxide placed in a beaker is treated with dilute HCl, its color changes to ( a) white (b) dark red (c) bluish-green (d) no change.

Answer: (c) bluish green

(ii) P is an aqueous solution of acid and Q is an aqueous solution of base. When these two are diluted separately, then (a) pH of P increases while that of Q decreases till neutralization.

(b) pH of P decreases while that of Q increases till neutralization. (C) pH of both P and Q decrease. (d) pH of both P and Q increase.

Answer: (a) pH of P increases while that of Q decreases till neutralisation.

(iii) Which of the following acids is present in bee sting? (a) Formic acid (b) Acetic acid (c) Citric acid (d) Hydrochloric acid

Answer: (c) Citric acid

(iv) Sting of ant can be cured by rubbing the affected area with soap because (a) it contains oxalic acid which neutralises the effect of formic acid (b) it contains aluminium hydroxide which neutralises the effect of formic acid (c) it contains sodium hydroxide which neutralises the effect of formic acid (d) none of these

Answer: (c) it contains sodium hydroxide which neutralises the effect of formic acid

(v) The pH of soil X is 7.5 while that of soil Y is 4.5. Which of the two soils, should be treated with powdered chalk to adjust its pH? (a) X only (b) Y only (c) Both X and Y (d) none of these

Answer: (b) Y only

Case Study 3: Acids, bases, and salts are essential substances in our daily lives and play crucial roles in various chemical reactions and processes. Acids are sour-tasting substances that can donate hydrogen ions (H+) when dissolved in water. They turn blue litmus paper red and have a pH value less than 7. Bases, on the other hand, are bitter-tasting substances that can accept hydrogen ions or donate hydroxide ions (OH-) when dissolved in water. They turn red litmus paper blue and have a pH value greater than 7. Salts are formed when acids react with bases, resulting in the neutralization process. They are formed by the combination of positive ions (cations) from bases and negative ions (anions) from acids. Understanding the properties and uses of acids, bases, and salts is important in various applications, such as in the preparation of medicines, household cleaning agents, and agricultural practices.

What are acids? a) Substances that can donate hydrogen ions when dissolved in water b) Substances that can accept hydrogen ions when dissolved in water c) Substances that turn blue litmus paper red d) Substances with a pH value less than 7 Answer: a) Substances that can donate hydrogen ions when dissolved in water

How are bases characterized? a) Sour-tasting substances b) Substances that can donate hydrogen ions c) Substances that turn red litmus paper blue d) Substances with a pH value less than 7 Answer: c) Substances that turn red litmus paper blue

What are salts formed from? a) Acids and bases b) Acids and metals c) Bases and metals d) Bases and water Answer: a) Acids and bases

What is the pH value of acids? a) Less than 7 b) Equal to 7 c) Greater than 7 d) Variable Answer: a) Less than 7

In which applications are acids, bases, and salts commonly used? a) Preparation of medicines b) Household cleaning agents c) Agricultural practices d) All of the above Answer: d) All of the above

Hope the information shed above regarding Case Study and Passage Based Questions for Class 10 Science Chapter 2 Acids, Bases, and Salts with Answers Pdf free download has been useful to an extent. If you have any other queries about CBSE Class 10 Science Acids, Bases, and Salts Case Study and Passage Based Questions with Answers, feel free to comment below so that we can revert back to us at the earliest possible. By Team Study Rate

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• Important Questions For Class 10 Science

CBSE Important Questions for Class 10 Science

CBSE Important Questions for Class 10 Science is an important resource for the students preparing for the Science exam. CBSE Class 10 is an important stage in career-making, so students must leave no stone unturned for the exam preparation. To help students excel in science subjects, we provide the CBSE Class 10 important questions for the Science subject. Going through these questions will help students understand the type of questions asked in the exam. This will give good practice to students, and they will be able to face the board exam with full confidence.

The experts provide the important questions for CBSE Class 10. These questions are created for all the chapters of the science subjects and cover the entire CBSE Class 10 Science Syllabus . The questions are designed based on the CBSE exam pattern after analysing the previous years’ exam trends and the types of questions asked.

Chapter-wise CBSE Important Questions for Class 10 Science

To access the important questions for CBSE Class 10 Science, click on a particular chapter link in the table below. There is a high chance that some of these questions may be asked in the board exam. So, students must practise them thoroughly. By solving important CBSE Class 10 Science questions, students can clarify their doubts and understand their preparation level. The CBSE Important Questions are prepared by referring to CBSE Class 10 Science previous year question papers, sample papers, etc.

CBSE Class 10 Science Marking Scheme 2022-23

There are different types of questions which are asked in the Class 10 Science paper. Some of them are objective types, some are short, and some are long. The table below shows the marking scheme of the CBSE Class 10 Science paper 2022-23. Going through it will help students understand the question paper pattern in a better way.

Students will get an internal choice in some of the questions in the exam. In such a case, they have to attempt only one question. They can also refer to the CBSE Class 10 Marking Scheme to know the exam pattern of all the major subjects of the board exam.

Highlights of CBSE Class 10 Important Questions

Students should go through these important questions once they complete their NCERT Books for Class 10 Science . It will help them understand all the crucial topics. Here are a few features of the important questions for CBSE Class 10 Science:

• Give an idea to students on the types of questions asked in the exam and their difficulty level.
• Help in time management as students get to know how much time it’s taking to solve a particular question.
• Cover all the important concepts and the entire science syllabus.
• The important questions are provided for all the chapters of science subject.
• Help during revision.
• Having a glance at the question, students could make out whether its time consuming or easy to solve.
• Students can easily understand which questions to attempt and which to skip during the exam.

We hope students have found this information on CBSE Important Question for Class 10 Science useful for their studies. Along with important questions, students can also access CBSE Class 10 Science Sample Papers , CBSE Class 10 Science Previous Year Papers , Science projects, Exam tips, etc. Keep learning and stay tuned for further updates on CBSE and other competitive exams. Download BYJU’S App and subscribe to YouTube to watch interactive Maths and Science videos.

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