

CBSE Class 10 Science Sample Paper 2023-24: Today, science has every aspect of our existence. Science is pervasive and has always served as the basis for most technologies as well as the majority of the items we use daily.
According to their inclinations, a lot of students decide to major in science for their future. The CBSE Class 10 Science Sample Paper for the academic year 2023-24 is available in PDF format. This resource is designed to assist students in their preparation for the upcoming examinations.CBSE Class 10 Previous Year Question Papers
Class 10 Social Science Additional Practice Paper Questions 2023-24
Exam preparation is often aided by the use of sample papers. Exam pressure is the most frequent cause of students' poor exam performance, despite their best efforts. There are a number of reasons why this could occur. CBSE Class 10 Science Sample Paper 2023-24 are provided by Physics wallah, which helps students get over their test anxiety. Any student in Class 10 who wants to do well on the board exams has to get the free CBSE Class 10 Science Sample Paper 2023-24.CBSE Important Questions for Class 10 Science
CBSE Class 10 Science Sample Paper 2023-24 PDF
CBSE Class 10 Science Sample Paper 2023-24 with Solution PDF
1. Identify the product which represents the solid state in the above reaction.
a) Barium chloride
b) Barium sulphate
c) Sodium chloride
d) Sodium sulphate
2. The colour of the solution observed after 30 minutes of placing zinc metal to copper sulphate solution is
a) Blue
b) Colourless
c) Dirty green
d) Reddish Brown
3. Mild non-corrosive basic salt is
a) Ca (OH)2
b) NaCl
c) NaOH
d) NaHCO3
4. On adding dilute sulphuric acid to a test tube containing a metal „X‟, a colourless gas is
produced when a burning matchstick is brought near it. Which of the following correctly
represents metal „X‟?
a) Sodium
b) Zinc
c) Copper
d) Silver
6. An element with atomic number_____ will form a basic oxide.
a) 7 (2,5)
b) 17 (2,8,7)
c) 14 (2,8,4)
d) 11 (2,8,1)
7. An element „M’ has 50% of the electrons filled in the 3rd shell as in the 2nd shell. The
atomic number of „M‟ is:
a) 10
b) 12
c) 14
d) 18
8. Generally food is broken and absorbed within the body of organisms. In which of the
following organisms is it done outside the body?
a) Amoeba
b) Mushroom
c) Paramoecium
d) Lice
9. Receptors are usually located in sense organs. Gustatory receptors are present in
a) tongue
b) nose
c) eye
d) ear
10. A farmer wants to grow banana plants genetically similar enough to the plants already
available in his field. Which one of the following methods would you suggest for this
purpose?
a) Regeneration
b) Budding
c) Vegetative propagation
d) Sexual reproduction
11. Height of a plant is regulated by:
a) DNA which is directly influenced by growth hormone.
b) Genes which regulate the proteins directly.
c) Growth hormones under the influence of the enzymes coded by a gene.
d) Growth hormones directly under the influence a gene.
12. A sportsman, after a long break of his routine exercise, suffered muscular cramps during a
heavy exercise session. This happened due to:
a) lack of carbon dioxide and formation of pyruvate.
b) presence of oxygen and formation of ethanol.
c) lack of oxygen and formation of lactic acid.
d) lack of oxygen and formation of carbon dioxide.
CBSE Class 10 Exam Pattern 2023-24
13. An object is placed in front of a convex mirror. Its image is formed : a) at a distance equal to the object distance in front of the mirror. b) at twice the distance of the object in front of the mirror. c) half the distance of the object in front of the mirror. d) behind the mirror and its position varies according to the object distance. 14. When light enters the atmosphere it strikes on extremely fine particles, which deflect the rays of light in all possible directions, This is due to – a) reflection of light b) atmospheric refraction c) scattering of light d) dispersion of light| CBSE Books for Class 10 | |
| CBSE Class 10th Science Book | CBSE Class 10th Social Studies Book |
| CBSE Class 10th English Book | CBSE Class 10th Mathematics Book |
| CBSE Class 10th Hindi-A Book | |
Question No. 21 to 26 are very short answer questions
[Each question of 2 Marks]
21. Dil. HCl is added to Zn granules.” How will you prove that chemical change has taken place here? Support your response with two arguments. 22. State the post-fertilisation changes that lead to fruit formation in plants. 2 23. What is the purpose of making urine in the human body? Name the organs that stores and releases the urine. OR Why do arteries have thick and elastic walls whereas veins have valves? 24. The refractive indices of three media are given below A ray of light is travelling from A to B and another ray is travelling from B to C. (a) In which of the two cases the refracted ray bends towards the normal? (b) In which case does the speed of light increase in the second medium? Give reasons for your answer. 25. A piece of wire of resistance R is cut into three equal parts. These parts are then connected in parallel. If the equivalent resistance of this parallel combination is R1, what is the value of the ratio R1 : R? OR Refer to the image below and state how the magnetic field pattern indicates regions where the magnetic field is stronger outside the magnet? What happens to the magnetic field when the current in the circuit is reversed?
26 Study the food chain given below and answer the questions that follow:
a) If the amount of energy available at the third trophic level is 100 joules, then how
much energy will be available at the producer level? Justify your answer.
b) Is it possible to have 2 more trophic levels in this food chain just before the fourth
trophic level? Justify your answer.
Question No. 27 to 33 are short answer questions
[Each question of 3 Marks]
27. The given reaction shows one of the processes to extract the metals like Iron and Manganese. MnO₂ (s) + Al(s) → Mn(l) + Al₂ O₃ (s) + Heat a) Give reason why the above reaction is known as a thermite reaction. b) Identify the substance oxidised and reduced in the above reaction. c) Give a reason why Aluminium is preferably used in thermite reactions. 28. An element ‘M’ with electronic configuration 2 8 3 combines separately with Cl–, SO4-2 anions. Write the chemical formulae of the compounds formed. Predict with the suitable reason the nature of the bond formed by element ‘M’ in general. How will the electrical conductivity of the compounds formed vary with respect to ‘M’? OR A reddish-brown metal ‘X’, when heated in air, gives a black compound ‘Y’, which when heated in presence of H₂ gas gives ‘X’ back. ‘X’ is refined by the process of electrolysis; this refined form of ‘X’ is used in electrical wiring. Identify ‘X’ and ‘Y’. Draw a well-labelled diagram to represent the process of refining ‘X’. 29. We are advised to take iodised salt in our diet by doctors. Justify it’s importance in our body. 30. What is the probability of a girl or a boy being born in a family? Justify your answer. 31. (i) Explain why the refractive index of any material with respect to air is always greater 1. (ii) In the figure below a light ray travel from air into the semi-circular plastic block. Give a reason why the ray does not deviate at the semi-circular boundary of the plastic block.
(iii)Complete the ray diagram of the above scenario when the light ray comes out of the
plastic block from the top flat end. (1+1+1)
32. (i) State the law that explains the heating effect of current with respect to the measurable
properties in an electrical circuit.
(ii) List the factors on which the resistance of a conductor depends. (2+1)
33. Anannya responded to the question: Why do electrical appliances with metallic bodies are
connected to the mains through a three pin plug, whereas an electric bulb can be connected
with a two pin plug?
She wrote: Three pin connections reduce heating of connecting wires.
(i) Is her answer correct or incorrect? Justify. 2
(ii) What is the function of a fuse in a domestic circuit?
Section-D
Question No. 34 to 36 are long answer questions
34. a) Rehmat classified the reaction between Methane and Chlorine in presence of sunlight as a substitution reaction. Support Rehmat‟s view with suitable justification and illustrate the reaction with the help of a balanced chemical equation. b) Chlorine gas was prepared using electrolysis of brine solution. Write the chemical equation to represent the change. Identify the other products formed in the process and give one application of each. OR Raina while doing certain reactions observed that heating of substance „X‟ with vinegar like smell with a substance „Y‟ (which is used as an industrial solvent) in presence of conc. Sulphuric acid on a water bath gives a sweet-smelling liquid „Z‟ having molecular formula C4H8O2. When heated with caustic soda (NaOH), „Z‟ gives back the sodium salt of and the compound „Y‟. Identify „X‟, „Y‟, and „Z‟. Illustrate the changes with the help of suitable chemical equations. 5 35. Given below are certain situations. Analyze and describe its possible impact on a person: a) Testes of a male boy are not able to descend into scrotum during his embryonic development. b) Vas deferens of a man is plugged. c) Prostate and seminal vesicles are not functional. d) Egg is not fertilised in a human female. e) Placenta does not attach to the uterus optimally. OR a) A doctor has advised Sameer to reduce sugar intake in his diet and do regular exercise after checking his blood test reports. Which disease do you think Sameer is suffering from? Name the hormone responsible for this disease and the organ producing the hormone. b) Which hormone is present in the areas of rapid cell division in a plant and which hormone inhibits the growth? The above image shows a thin lens of focal length 5m. (i) What is the kind of lens shown in the above figure? (ii) If a real inverted image is to be formed by this lens at a distance of 7m from the pole, then show with calculation where should the object be placed? (iii) Draw a neatly labelled diagram of the image formation mentioned in (ii) OR A 10 cm long pencil is placed 5 cm in front of a concave mirror having a radius of curvature of 40 cm. (i) Determine the position of the image formed by this mirror. (ii) What is the size of the image? (iii)Draw a ray diagram to show the formation of the image as mentioned in the part.| 1 | Substance ‘C/’ is used as a preservative |
| 2 | ‘C’ has two carbon atoms; „C‟ is obtained by the reaction of „A‟ in presence of alkaline Potassium permanganate followed by acidification |
| 3 | ‘F’ is formed on heating „A‟ in presence of conc Sulphuric acid |
| 4 | ‘F’ reacts with Hydrogen gas in presence of Nickel and Palladium catalyst |
(Gene for Free ear lobe is represented by F and gene for attached ear lobe is represented
by f for writing the genetic constitution).
OR
Suresh’s parents have attached earlobes. What type of ear lobe can be seen in Suresh and his sister Siya? Explain by giving the genetic composition of all.
Vinita and Ahmed demonstrated a circuit that operates the two headlights and the two sidelights of a car, in their school exhibition. Based on their demonstrated circuit, answer the following questions.
39. (i) State what happens when switch A is connected to
a) Position 2
b) Position 3
(ii) Find the potential difference across each lamp when lit.
(iii) Calculate the current
a) in each 12 Ω lamp when lit.
b) In each 4 Ω lamp when lit.
OR
(iv) Show, with calculations, which type of lamp, 4.0 Ω or 12 Ω, has the higher power.
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Examination like questions: The CBSE Class 10 Science sample questions are designed to closely resemble the actual exam. This implies that not only are the question kinds identical to those on the exam, but so is the layout in order to give the most authentic experience possible.
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| Related Links | |
| CBSE Class 10 Maths Sample Paper 2023-24 | CBSE Class 10 Social Science Sample Paper 2023-24 |
| CBSE Sample Paper for Class 10 English 2023-24 | |
