CBSE Class 10 Science Sample Paper 2020 Set B

Read and download the CBSE Class 10 Science Sample Paper 2020 Set B, designed by expert teachers according to the latest 2025-26 curriculum and examination pattern issued by CBSE, NCERT, and KVS. These Class 10 Science sample papers include detailed step-by-step solutions, helping students to practice and evaluate their performance against the most recent marking schemes.

Solved Sample Paper for Class 10 Science PDF

Our Class 10 Science model papers are important for understanding the weightage of different chapters and the difficulty level of expected questions. By solving these guess papers Class 10 students can identify weak areas and improve time management. We also suggest referring to our Class 10 Science Question Papers of previous years to further strengthen your exam preparation.

Class 10 Science Sample Paper with Solutions

CARBON AND ITS COMPOUNDS
 
1. What is the name given to the chemical bond
 
a) formed by sharing of electrons between two atoms?
 
b)formed by the transfer of electrons from one atom to another?
 
2. Draw the electron structure of simplest ketone. 
 
3. Which of the following compounds has double bond:
       
    C4H10,C4H6.C4H8
 
4. Name a catalyst that can be used in the addition reaction of unsaturated hydrocarbon with hydrogen.
 
5. Identify the functional group present in C2H5OH 
 
6. Give the name and structural formula of the next higher homologue of CH3CHO
 
7. A hydrocarbon has six carbon atoms. Write the molecular formula of the alkane and alkyne it forms.
 
8. State one advantage of detergents over soaps. 
 
9. Draw the structural formula of cyclohexane and benzene. 
 
10. Why does carbon form bonds by sharing electrons and not by losing or gaining electrons?
 
11. Explain why
 
a) Diamond is hard whereas graphite is soft
 
b) Diamond is a poor conductor of electricity whereas graphite is a good conductor.
 
12. What do you understand by homologus series? State any two characteristics of a homologus series?
 
13. Explain the bond formation in the following
 
a) Water
 
b) Carbon dioxide
 
14. What is meant by substitution reaction? What type of hydrocarbons show substitution reaction? Explain with an example.
 
15. Complete the following equations
 
a) CH3CH2OH + CH3COOH→
 
b) CH3CH2OH + Na→
 
c) CH3COOH + Na2CO3
 
16. What happens when ethanol is treated with alkaline potassium permanganate? Identify the type of reaction and write an equation for the same.
 
17. Explain the versatile nature of carbon to form large number of compounds. Also explain why carbon forms strong bonds?
 
18. a) Differentiate between saturated and unsaturated hydrocarbons?
 
b) How are saturated and unsaturated hydrocarbons identified using bromine water?
 
c) Identify unsaturated hydrocarbons from the following and draw their structural formula: C3H4,C3H6.C3H8
 
19. a) What do you understand by functional group?
 
b) Draw the structure of a chloroalkane with three carbon atoms and write its IUPAC name.
 
c) Identify the functional groups in the following and write their IUPAC names
 
i) CH3CH2CH2COOH    ii) CH3CH2CH2 CO CH3
 
20. a) Explain cleansing action of soap.
 
b) What are isomers? Draw all possible isomers of pentane.
 
 
 
Please click on below link to download CBSE Class 10 Science Sample Paper 2020 Set B

How to download CBSE Class 10 Science Sample Paper 2020 Set B in PDF?

Students can easily download the CBSE Class 10 Science Sample Paper 2020 Set B from our website to prepare for their upcoming examinations. To score high marks, it is important for Class 10 students to understand the exaact pattern as per which teachers design the question papers. We strongly suggest that you practice these latest sample papers for Science and solve different types of questions that are expected to come this year. You can downloadin PDF format so that you can practice offline. We also recommend that Class 10 students solve these papers actual exam conditions at home.

Why should you solve CBSE Class 10 Science Sample Paper 2020 Set B?

Practicing these model papers has several benefits for Class 10 students:

  • New Question Bank: This set has fresh questions for Science which are different from previous years.
  • Exam Pattern Knowledge: Solving more sets will help you to understand the weightage of each chapter in Class 10 and also the type of questions asked.
  • Identify Weak Areas: Comparing your score in each set to find out topics in Class 10 Science for which you need hard work.
  • Speed and Accuracy: Attempting MCQ questions and long-form problems for Class 10 Science makes you faster and better and you will be able to finish your exam on time.

What should you do after solving CBSE Class 10 Science Sample Paper 2020 Set B?

  1. Check Your Work: Match your answers with the solutions given by our teachers in the Science Sample Paper PDF.
  2. Learn from Mistakes: Class 10 students should focus on the questions which you solved incorrectly and understand the error.
  3. Revision: If you find a question difficult you shoul refer to NCERT book for Class 10 Science to understand concepts and then try the question again.
  4. Continuous Practice: Solve multiple sets of Science sample papers from studiestoday.com to build confidence before the CBSE exams.
Where can I download the PDF for CBSE Class 10 Science Sample Paper 2020 Set B?

You can download the complete PDF for CBSE Class 10 Science Sample Paper 2020 Set B for free from StudiesToday.com. Our resources for Class 10 Science are updated for the latest academic session and follow the official exam pattern.

Are solutions provided for CBSE Class 10 Science Sample Paper 2020 Set B?

Yes, CBSE Class 10 Science Sample Paper 2020 Set B comes with detailed, teacher-verified solutions. We have provided step-by-step answers for Science to help students of Class 10 understand correct methodology and marking scheme.

How can practicing CBSE Class 10 Science Sample Paper 2020 Set B help in exam preparation?

Practicing this Science paper helps in time management and identifying important topics. For Class 10, solving mock papers is the best way to gain confidence and reduce exam-day anxiety.

Is the CBSE Class 10 Science Sample Paper 2020 Set B accessible on mobile and tablets?

Yes, all our study materials for Class 10 Science are provided in a mobile-friendly PDF format. You can easily download CBSE Class 10 Science Sample Paper 2020 Set B on your mobile device.