CBSE Class 10 Science

Class 10 Science Chapter 1 Chemical Reactions & Equations Study Notes

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Class 10 Science Chapter 1 Chemical Reactions & Equations Study Notes Here we are providing study notes for class 10 science chapter 1 chemical reactions and equations. Students can use these study notes for better understanding of the topics. This study notes are very helpful for exam preparation. The process in which new substances with … Read more

CBSE Class 10 Science Electricity In-Text Question With Detailed Solution

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NCERT In-Text Solutions For Class 10 Science Chapter 12 Electricity CBSE Class 10 Physics Electricity In-Text Solution will help students to score good in class tests as well as in the CBSE Class 10 Board Exam. The solution provided below will also help students to clear their concepts about electricity. Before getting into the in-text … Read more

CBSE Class 10 Carbon & Its Compounds Unsolved MCQ

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(a) (i) and (iii) (b) (ii) and (iv)(c) (i) and (ii) (d) (iii) and (iv) 47. In the below given reaction, alkaline KMnO4 acts as (a) reducing agent(b) oxidising agent(c) catalyst(d) dehydrating agent 48. Structural formula of ethyne is 50. Which of the following is the correct representation of electron dot structure of nitrogen? 57. … Read more

MCQ Questions for Class 10 Science Human Eye and Colourful World with Answers

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MCQ Questions for Class 10 Science Human Eye and Colourful World with Answers Question 1. The least distance of distinct vision for a normal eye is(a) infinity(b) 25 cm(c) 2.5 cm(d) 25 m Answer Answer: b Question 2. The defect of vision in which a person cannot see the distant objects clearly but can see … Read more

MCQ Questions for Class 10 Science Light Reflection and Refraction with Answers

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MCQ Questions for Class 10 Science Light Reflection and Refraction with Answers Here we are providing MCQ Questions for CBSE Class 10 Science Light- Reflection and Refraction with Answers. Students are suggested to go through each and every question to check their grasp on this particular chapter. Question 1. If an incident ray passes through … Read more

Important Questions For Class 10 Science Chapter 5- Periodic Classification of Elements

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Q1. Give one example of Döbereiner’s Triad. Ans.   Li,        Na,           K 7          23           39 Q2. How many triads could Döbereiner identify from the existing elements then? Ans. Döbernier could identify only three triads. Q3. What is the limitation of Döbereiner triads? Ans. He failed to arrange all the elements in triads having same chemical properties. … Read more

Important Questions For Class 10 Science Chapter 4- Carbon and its Compounds

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VERY SHORT ANSWER TYPE QUESTIONS (1 Mark) Q1. What is a hydrocarbon?Ans. It is a compound of hydrogen and carbon. Q2. Give different forms in which carbon occurs in nature.Ans. Carbon occurs in free form e.g., graphite and diamond in combined form like carbon dioxide, carbonates, etc.In earth’s crust–0.02% and in atmosphere–0.03%. Q3. Name two … Read more

Class 10 Physics Study Notes Management of Natural Resources (16)

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Natural Resources : Anything in the environment ‘which can be used’ is called natural resource. For example, soil, air, water, forests, wildlife, coal and petroleum. Management of Natural Resources : It is the use of natural resources in such a way so as to avoid wastage and conserve them for future. There are national and … Read more

CBSE 10 Science Ch- 15 Our Environment (NCERT Solution)

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NCERT Solution Chapter- 15 Our Environment Page No. 1. Why are some substances biodegradable and some non-biodegradable? Answer: Substances which can be acted upon by microorganism (decomposer) are called biodegradable. For example- vegetable wastes, paper, cotton etc. On the other hand, materials which are not acted upon by decomposers are called non-biodegradable. For example- plastic, … Read more

CBSE 10 Science Ch-07 Control and Coordination (NCERT Solution)

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NCERT SOLUTION Chapter-07 Control and Coordination Question 1: What is the difference between a reflex action and walking?  Answer: A reflex action is a rapid, automatic response to a stimulus. It does not involve any thinking. For example, we close our eyes immediately when the bright light is focused. Walking, on the other hand, is a voluntary … Read more

How do Organisms Reproduce

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How do Organisms Reproduce Reproduction is the process by which living organisms produce new individuals similar to themselves. It ensures continuity of life on earth. Nucleus of the cell contains DNA (Deoxyribose Nucleic Acid) which is the heredity material. DNA replicates and forms new cells causing variation. So, these new cells will be similar but … Read more

Class 10 Science Human Eye (Important Questions with Answers)

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Important Questions With Answers 1. How is the eye lens held in its position? Ans: – Ciliary muscles hold the eye in position. 2. What is meant by near point? Ans: – The nearest point up to which an eye can see clearly is called the near point of the eye. 3. What is meant … Read more

Human Eye & Colourful World (Numerical with Answer)

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Here we are providing numerical assignment on class 10 science chapter human eye and colourful world. Answers are also provided for reference. Numerical Problems Based on Human Eye and Colourful World Q.1. If the concave lens of focal length (f = 1.5m) used to restore the proper vision, then what is the power of lens. … Read more

CBSE Class 10 Human Eye & Colourful World NCERT Solution

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  Human Eye & Colourful World (NCERT solution) Q. 1. What is meant by power of accommodation of the eye? Ans. The ability of the eye lens to adjust its focal length is called power of accommodation of the eye. This enables us to see distant objects and nearby object clearly. Q. 2. A person … Read more

Class 10 Biology How do organisms reproduce (Important Questions with Answers)

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Class 10 Biology How Do Organisms Reproduce Important Questions   Very Short Answer Questions [1 Marks] 1. Define reproduction. Ans. The process of producing new individuals of the same species by existing organisms, i.e., parents, is known as reproduction. 2. Name two organisms that show asexual reproduction. Ans. Amoeba and yeast show asexual reproduction. 3. … Read more

Class 10 Biology How do organisms reproduce (NCERT Solution)

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CBSE Class X Biology How Do Organisms Reproduce (NCERT Solution) Q. 1. What is the importance of DNA copying in reproduction? Ans. The creation of a DNA copy is essential to produce organisms which are similar to their parents. As copying of DNA brings some variations each time, the surviving cells are similar to parent … Read more

Quick Revision Notes for Class 10 Science Chapter 6 Life Processes

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Quick Revision Notes for Class 10 Science Chapter 6 Life Processes Quick revision notes are a summarized form of study material that condenses the most important information from a larger body of text. They are designed to help students review and retain key concepts, facts, and ideas in a short amount of time, usually before … Read more

Class 10 Physics Light Important Questions

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Very Short Answer Questions [1 marks] 1. Define lens.Ans. A piece of optical material bounded by one or two spherical surfaces is called lens. 2. Why is a convex lens called converging lens? Ans. It is because a parallel beam of light on passing through it converges at a point. 3. Define optical centre of a … Read more

Class 10 Physics Light (NCERT Solution)

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NCERT QUESTIONS WITH THEIR ANSWERS IN-TEXT QUESTIONS Page 168  1. Define the principal focus of a concave mirror.  Ans. A point in front of a concave mirror, on its principal axis, such that parallel rays travelling parallel to the principal axis, after reflection actually converge at this point. 2. The radius of curvature of a … Read more

Class 10 Science Acids, Bases & Salt Important Questions

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Very Short Answer Questions Blue and red litmus papers are placed simultaneously in a colourless aqueous solution. It is found that the colour of both litmus papers is red. What is the nature of the solution and why? A strip of absolutely clear cloth is sprayed with onion juice. The strip is then rubbed with … Read more

NCERT Solutions for Class 10 Science Chapter 6 Life Processes

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NCERT Solutions for Class 10 Science Chapter 6 Life Processes Gurukul Provides NCERT Solutions for Class 10 Science. You can download these solutions in PDF format for free. All questions are solved by subject experts keeping in mind the NCERT guidelines. Students can use these questions for practice. Here, we have given NCERT Solutions for … Read more

Class 10 Science Chapter 10 Light- Reflection and Refraction Study Notes

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What is Light ??? Light is the form of energy that enables us to see. Properties of Light • Electromagnetic wave, so does not require any medium to travel. • Light tends to travel in straight line. • Light has dual nature i.e., wave as well as particle. • Light casts shadow. • Speed of … Read more

Metals & Non-Metals (NCERT SOLUTION)

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Question 1: Which of the following pairs will give displacement reactions? (a) NaCl solution and copper metal (b) MgCl2 solution and aluminium metal (c) FeSO4 solution and silver metal (d) AgNO3 solution and copper metal. Answer: (d) AgNO3 solution and copper metal Question 2: Which of the following methods is suitable for preventing an iron … Read more

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