Access and download CBSE Class 10 Science Question Paper Solved 2019 Set D, carefully designed as per the latest 2025-26 examination guidelines issued by CBSE, NCERT, and KVS. These Class 10 Science previous year question papers include detailed solutions, helping students to assess their performance and identify and improve key areas before the final exams.
Solved Science Question Papers for Class 10
Practicing these Class 10 Science question papers is the best way to understand the actual exam pattern and marking scheme. By solving these papers under timed conditions, Class 10 students can improve their speed and accuracy. Download the full CBSE Class 10 Science Question Paper Solved 2019 Set D to begin your self-assessment today.
Science Class 10 Question Paper PDF with Solutions
CBSE Class 10 Science Question Paper Solved 2019 Set D. Students can download the last year board exams question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.
SECTION A
1. Name two industries based on forest produce.
2. Why are the heating elements of electric toasters and electric irons made of an alloy rather than a pure metal ?
SECTION B
3. Write the molecular formula of ethene and draw its electron dot structure.
4. Give reasons :
(a) Platinum, gold and silver are used to make jewellery.
(b) Metals like sodium and potassium are stored under oil.
OR
Silver articles become black when kept in open for some time, whereas copper vessels lose their shiny brown surfaces and gain a green coat when kept in open. Name the substances present in air with which these metals react and write the name of the products formed.
5. The absolute refractive index of Ruby is 1·7. Find the speed of light in Ruby. The speed of light in vacuum is 3 ×108 m/s.
SECTION C
6. On heating blue coloured powder of copper (II) nitrate in a boiling tube, black copper oxide, O2 and a brown gas X is formed.
(a) Identify the type of reaction and the gas X.
(b) Write balanced chemical equation of the reaction.
(c) Write the pH range of aqueous solution of the gas X.
7. (a) While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid ?
(b) Dry hydrogen chloride gas does not change the colour of dry litmus paper. Why ?
OR
How is sodium hydroxide manufactured in industries ? Name the process. In this process a gas X is formed as by-product. This gas reacts with lime water to give a compound Y, which is used as a bleaching agent in the chemical industry. Identify X and Y and write the chemical equation of the reactions involved.
8. What are amphoteric oxides ? Give an example. Write balanced chemical equations to justify your answer.
9. What is a homologous series of carbon compounds ? Give an example and list its three characteristics.
Please click the link below to download pdf file of CBSE Class 10 Science Question Paper Solved 2019 Set D.
| CBSE Class 10 Science Question Paper Solved 2021 Set A |
| CBSE Class 10 Science Question Paper Solved 2021 Set B |
| CBSE Class 10 Science Question Paper Solved 2021 Set C |
Important Practice Resources for Class 10 Science
CBSE Class 10 Science Question Paper Solved 2019 Set D
To understand the types of questions asked in past examinations, it is very important for Class 10 students to solve the CBSE Class 10 Science Question Paper Solved 2019 Set D provided above. You can easily download these past papers for Class 10 Science in PDF format for the last 10 years. By practicing these actual exam questions you will gain an understanding of the difficulty level and the variety of topics covered over the years. By solving these Previous Year Papers (PYPs) you will understand both descriptive and MCQ questions in your final tests.
Importance of solving CBSE Class 10 Science Question Paper Solved 2019 Set D
Regularly practicing CBSE Class 10 Science Question Paper Solved 2019 Set D is the best way to improve your score in Class 10 Science. These papers will give you details of the marking scheme and the paper structure used by the CBSE. By regularly attempting these under actual exam conditions at home, you can slowly improve your time management skills, which will help you to complete your Science paper within the allowed duration.
Benefits of downloading CBSE Class 10 Question Papers
Having the CBSE Class 10 Science Question Paper Solved 2019 Set D in PDF format allows you to revise key concepts anywhere, even without an internet connection. These sets are a reliable tool to practice numerical problems and understand the correct approach to all types of answers. After solving the questions, you should compare your work with the solutions provided by our teachers. Along with these papers, students should always solve the Class 10 Science Sample Papers and MCQ tests on studiestoday.com for a complete revision.
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