Sample Paper Class 10 Science 2022-23 with solutions for all Board exams including NCERT and CBSE boards. These sample papers are useful for all Class 10th (X) Board Exams from all States of India.
Class-X Science Sample paper (#1)
BOARD SAMPLE QUESTION PAPAER 2023-2024
Class-X
Subject -Science
Max. Marks -80 Time Allowed- 3 Hours
General Instructions
(1) This question paper consists of 5 sections- A,B,C,D and E . Attempt all the sections.
(2) All questions are compulsory. However, an internal choice is provided in some questions. A student is expected to attempt only one of these questions.
(3) Section A consists of 20 objective type questions carrying I mark each. They are to be answered in one word and in one sentence.
(4) Section B consists of 6 Very Short questions carrying 02 marks each. Answers to these questions should in the range of 30 to 50 words.
(5) Section C consists of 7 Short Answer type questions carrying 03 marks each. Answers to these questions should in the range of 50 to 80 words.
(6) Section D consists of 3 Long Answer type questions carrying 05 marks each Answer to these questions should be in the range of 80 to 120 words.
(7) Section E consists of 3 source-based/case-based units of assessment of 04 marks each with sub-parts.
(8) This question paper consist of a total number of 37questions.
Section -A
- Balance the chemical equation (1)
Na+ H2O NaOH +H₂ - Write the chemical formula of baking powder (1)
- Name the element whose electronic configuration is 2,8,8 (1)
- Write the IUPAC name of C2H5OH. (1)
- Write the full form of R.N.A. (1)
- What is the refractive index of diamond? (1)
- The S.I. unit of electric current is (1)
(a) Volt
(c) Ampere
(d) Ohm
(e) Watt - What is the symbol of battery component in the electric circuit ? (1)
- Name the female reproductive organs in humans. (1)
- Name the device which measures the potential difference in an electric circuit. (1)
- What is the far point of the human eye with normal vision? (1)
- Name any two plant hormones. (1)
- Write the name of female part of a flower. (1)
- Write the main constituent of biogas. (1)
- Which gas is responsible for acid rain. (1)
- Coal and petroleum are__________ fuels. (1)
- The amount of light entered in eye is controlled by_____________ (1)
- Given below is diagram of reproductive system. Study diagram and answer following questions.
(a) Name the system.
(b) Which part act as common passage for both sperms and urine.
i) 5
ii) 7
iii) 6
iv) 8
(c) Blocking of …..prevents pregnancy.
i) 5
ii) 6
iii) 7
iv) 8 (3)
Section-B
19. Explain Why is respiration considered an exothermic reaction? (2)
20. Why should curd and sour substances not be kept in brass and copper vessles? (2)
21. Write the meaning of malleable and ductile. (2)
22. What is the function of digestive enzymes? (2)
23. What is the difference between internal fertilization and external fertilization ? (2)
24. Define the power of a lens and what is its unit? (2)
Section -c
25. Why do stars twinkle? (3)
26. How resistance of conductor varies with length and area of cross section of wire? (3)
27.What is an ideal fuel? (3)
28. What are the differences between Mendeleev’s periodic table and modern periodic table? (3)
29. Why does menstruation occur? (3)
30. Explain nuclear energy and its importance. (3)
31. What is forest conservation ? How an individual contribute to forest conservation ?(3)
Section-D
32. Explain the cleaning action of soap. (5)
33. What is reproduction and explain various methods of reproduction. (5)
34.Draw a labelled diagram of an electric generator Explain its principle and working.
(Or)
What is photosynthesis ? Explain its importance. (5)
Section-E
35. What is an alloy ? Give its importance? (4)
36. Explain biomagnification with example. (4)
37.How sex determination in child takes place ? (4)
Science Solved sample paper