CBSE Class 10 Science Sample Paper (1)

CBSE Class 10 Science Sample Paper (1). Based on CBSE and NCERT guidelines. The students should practice these Question Papers to gain perfection which will help him to get more marks in CBSE examination. Please refer to more CBSE Class 10 question papers in other links. The CBSE Question papers are prepared based on trend in past examinations and expected questions in CBSE exams. Its always recommended by CBSE to practice the papers released by CBSE to get better exams in CBSE exams. CBSE Last Year Question Papers for class 10 for final/ term/ SA1/ SA2 Examinations conducted by Central Board of Secondary Education for all CBSE affiliated schools in India and abroad. Please refer to more CBSE Class X sample papers, question papers, HOTs etc in other links.

SECTION A

Q1. What is the effect of an increase in temperature on the rate of a chemical reaction ? 

Q2. Name any two isotopes which readily undergo nuclear fission. 

Q3. Name the functional groups present in : 

(a) CH3 COOH

(b) CH3 CO CH3

Q4. Why does it take longer to burn wet wood ? 

Q5. Why are Zirconium, Titanium and Chromium classified as strategic metals? 

Q6. Define the terms

(a) Astronomical Unit

(b) Light year

Q7. Explain giving reasons :

(i) Tartaric acid is a component of baking powder used in making cakes.

(ii) Gypsum, CaSO4 2H2O is used in the manufacture of cement. 

Q8. Calculate the energy released (in MeV) when1 kg mass is completely converted into energy. (Take 1 MeV = 1.6 x 10-13 J, c = 3.0 x 108ms—1

OR

When Uranium undergoes fission, 0.1% of the total mass is converted into energy.

Calculate the total amount of energy released in joules during an explosion of an atom bomb which contains 5kg of Uranium.

Q9. When a copper wire is left in silver nitrate solution, it is observed that the solution turns bluish green.

(a) Explain this observation.

(b) Write the balanced chemical equation to represent the change taking place. 

Q10. State Right Hand Thumb rule to find the direction of the magnetic field around a current carrying straight conductor. How will this magnetic field be affected on-

(a) increasing the current through the conductor?

(b) changing the direction of flow of current in the conductor? 

Q11. (a) Name the product formed when methanol undergoes controlled oxidation.

(b) Describe with necessary chemical equations the test you would perform to identify the above product.

(c) Name the compound formed when ethanoic acid reacts with ethanol in the presence of concentrated sulphuric acid. 

OR

(a) Propanone can be manufactured from Cumene. Write the corresponding chemical equation.

(b) Name the compound formed when propanone is reduced. Which reducing agent is generally used in the process  ?

(c) How is propanone converted to ethanoic acid?

Q12. Two identical resistors, each of resistance 10 ohms, are connected (i) in series (ii) in parallel, in turn, to a battery of 6 volts. Calculate the ratio of power consumed in the combination of resistors in two cases. 

Q13. An aqueous solution has hydrogen ion concentration,

[H+] = 1.0 x 10-10 mol L-1

(a) Determine the pH of this solution.

(b) Is the solution acidic, basic or neutral?

(c) Will the pH of the above solution increase or decrease on adding a drop of 1M HC1 to it ? Justify your answer.

Please refer to attached file for CBSE Class 10 Science Sample Paper (1).

Tags: 

 


Click to View or Download pdf file
Click for more Science Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Tricks for Utilization of additional time introduced in CBSE Board Exams

Tricks for Proper Utilization of Add-On 15 Minutes introduced in CBSE Board Exams The intend of this article is to share the best suggestions and guidelines to utilize the extra 15 minutes provided for reading the question paper in CBSE Board Examination. These extra...

How to Effectively Answer CBSE Board Examination Question Papers

The intend of this article is to share the best ways to answer the CBSE Board Examination. Usually most of the students tend to become nervous at the times of the board examination. In this article we will share the most effective ways to make the answers to the CBSE...

Celebration of Republic Day by CBSE

As you are aware, Republic Day is celebrated every year on 26th January to honour the Constitution and Republic of our country. Celebration of this occasion annually helps youth and children of our country to be aware of the significance of Indian Constitution, unity...

BRICS International Online Mathematics Competition

BRICSMATH.COM is an annual International Online Competition in Mathematics, for students of classes I – XII of 07 BRICS countries (Brazil, Russia, India, China and South Africa, Indonesia and Vietnam). The competition is held online on the website www.bricsmath.com and...

The CBSE Science Challenge 2020

The CBSE Science Challenge - 2020 Science is inexplicably linked with our lives and helps us to understand the world around us better. Scientific and technological developments contribute to progress and help improve our standards of living. By engaging with this...

×
Studies Today