Here is CBSE Class 10 Science Question Paper 2019 Set 04 Solved for your practice. Download official Class 10 Science previous year question papers featuring complete solutions, matched with the 2026-27 syllabus standards of CBSE, NCERT, and KVS. Solving these papers lets students track their progress and study efficiently.
CBSE Class 10 Science Exam Question Papers
Try these Class 10 Science question papers to master the exam pattern and learn how marks are awarded. Practicing under exam conditions will make Class 10 students much faster and precise. Download the full CBSE Class 10 Science Question Paper 2019 Set 04 Solved to evaluate your skills today.
Class 10 Science Question Paper PDF Download
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.
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Class 10 Science Past Exam Papers & Resources
Exam preparation for Class 10 students requires solving the CBSE Class 10 Science Question Paper 2019 Set 04 Solved provided above. Easily download these past papers for Class 10 Science available in PDF format for the last 10 years. Regular drills on real past papers build absolute familiarity with question styles, helping you ace both descriptive prompts and MCQ tests.
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Regularly practicing CBSE Class 10 Science Question Paper 2019 Set 04 Solved 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.
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FAQs
The CBSE Class 10 Science Question Paper 2019 Set 04 Solved is available for download on StudiesToday.com. It includes complete set with all sections so that Class 10 students can practice with the exact same paper that came in the CBSE exams.
Yes, the solutions for CBSE Class 10 Science Question Paper 2019 Set 04 Solved are prepared by subject matter experts as per official marking scheme. Class 10 students will understand the structure of answers and 'step-marks' methodology Science.
Solving previous year papers like CBSE Class 10 Science Question Paper 2019 Set 04 Solved is important to understand repeat themes and question difficulty levels of Science. It helps Class 10 students to test their time management skills too.
Yes, where applicable, CBSE Class 10 Science Question Paper 2019 Set 04 Solved is available in both English and Hindi mediums. All students from Class 10 can access Science study material in their preferred language.
No, all previous year question papers on StudiesToday, including CBSE Class 10 Science Question Paper 2019 Set 04 Solved, are provided free of charge in mobile-friendly PDF.