Class 10 Science Sample Paper Term 1 With Solutions Set E

Please refer to Class 10 Science Sample Paper Term 1 With Solutions Set E below. These Class 10 Science Sample Papers will help you to get more understanding of the type of questions expected in the upcoming exams. All sample guess papers for Science Class 10 have been designed as per the latest examination pattern issued by CBSE. Please practice all Term 1 CBSE Sample Papers for Science in Standard 10.

Sample Paper Term 1 Class 10 Science With Solutions Set E

Section – A

1. Identify the type of reaction in the following experiment:

(I) Combination Reaction
(II) Decomposition Reaction
(III) Exothermic Reaction
(IV) Endothermic Reaction
(a) Only (I)
(b) Only (II)
(c) Both (I) and (III)
(d) Both (II) and (IV)

2. A few drops of phenolphthalein indicator were added to an unknown solution A and it acquired pink colour. Then another unknown solution B was added to it drop by drop and the solution becomes colorless. Which of the given options correctly represents the nature of the solutions A and B?

3. Which of the following are not ionic compounds?
(I) AlCl₃ (II) HCl
(III) CCl₄ (IV) NaCl
(a) (I) and (II)
(b) (II) and (III)
(c) (III) and (IV)
(d) (I) and (III)

4. The value of p, q, r and s in balanced chemical equation :
p BaCl₂ + q Al₂(SO₄)₃ → r AlCl₃ + s BaSO₄ are respectively.
(a) 3, 2, 2, 3
(b) 3, 1, 2, 3
(c) 3, 1, 3, 3
(d) 3, 1, 3, 2

5. Which of the following is acidic in nature?
(a) Milk
(b) Human blood
(c) Lime water
(d) Laundary detergents

6. Packed food items made up of oils and fats are generally flushed with inert gas :
(I) To protect them from corrosion.
(II) They protect their flavours.
(III) To protect them from being rancid.
(IV) To protect their taste.
Which of the following statements are correct?
(a) (II), (III), (IV)
(b) (III) and (IV)
(c) only (III)
(d) (I) and (II)

7. Which component is being reduced in the reaction ?

(a) Cu
(b) H₂
(c) CuO
(d) Both CuO and H₂

8. Soda acid extinguisher contains the chemical:
(a) NaHCO₃
(b) Na(OH)
(b) Na₂CO₃
(d) NaCl

9. Select the correct statments w.r.t. bases:
(I) Bases have bitter taste and soapy touch.
(II) With carbon dioxide, they form salt and water.
(III) The gas evolved with zinc metal extinguishes a lightning splinter.
(a) Statements (I) and (III) are correct
(b) Only Statement (I) is correct
(c) Statement (I) and (II) are correct
(d) Only statement (II) correct

10. On passing electric current through acidified water:
(I) Hydrogen gas is collected over cathode and oxygen gas is collected over anode.
(II) Oxygen gas is collected over cathode and hydrogen gas is collected over anode.
(III) Ratio of Volume of hydrogen gas : oxygen gas = 1 : 2
(IV) Ratio of Volume of hydrogen gas : oxygen gas = 2 : 1
Select the correct statements:
(a) Both (I) and (III)
(b) Both (I) and (IV)
(c) Both (II) and (III)
(d) Both (II) and (IV)

11. When do the desert plants take up carbon dioxide?
(a) During early morning
(b) During day
(c) During night
(d) All the time

12. Study the diagram of a stomatal pore with labels X and Y and select the option which gives the correct identification and main function of X and Y.

13. Rings of cartilage, in the throat prevents:
(a) Collapsing of air passage.
(b) Entering of food in wind pipe.
(c) Bacterial infection in the tract.
(d) Entering of microbes.

14. Which of the following factors influence ascent of sap?
(I) Root Pressure
(II) Diffusion
(III) Osmotic Pressure
(IV) Transpiration Pull
(V) Turgor pressure
(a) (I), (III), (IV), (V)
(b) (I), (IV), (V)
(c) (III), (IV), (V)
(d) (I), (IV)

15. Carefully study the diagram of the human heart with labels (I), (II), (III) and (IV). Select the option which gives correct identification and its main function.

(a) (I) Pulmonary artery: Carry oxygenated blood from heart to lungs
(b) (II) Pulmonary veins: Carry oxygenated blood from lungs to the heart
(c) (III) Aorta: Carry deoxygenated blood from heart to lungs
(d) (IV) Vena Cava: Carry oxygenated blood from body parts to heart

16. What is the final product of protein, carbohydrate and fat digestion?
(a) Protein – Ammonia
Fats – Fatty Acid + Glycerol
Carbohydrates – Glucose
(b) Protein – Amino acid
Fats – Fatty Acid
Carbohydrates – maltose
(c) Protein – Amino acid
Fats – Fatty Acid + Glycerol
Carbohydrates – Glucose
(d) Protein – Ammonia
Fats – Chylomicrons
Carbohydrates – Glucose

17. Study the ray diagram given below and select the correct option.

(a) Parallel to the incident ray
(b) Pass through F
(c) Appear to diverge from F
(d) Appear to diverge from C

18. Harsh is standing in front of a unique mirror he finds the image of head smaller the middle portion of her body of the same size and that of the legs bigger. Which of the following is the order of combination for such mirror from the top?
(a) plane, convex and concave
(b) concave, plane and convex
(c) convex, plane and concave
(d) convex concave and plane

19. A light ray from medium A to medium B as shown in the given figure. The refractive index of medium B relative to medium A is:

(a) more then one
(b) less than one
(c) one
(d) zero

20. Shreya is at the distance 15 cm moves slowly towards the pole of a convex mirror.
What will be the image in the mirror?
(a) shortened and real
(b) enlarged and real
(c) enlarged and virtual
(d) diminished and virtual

21. Planets do not twinkle because:
(a) Planets are not a source of light.
(b) The shift in their position (as compared to stars) is smaller.
(c) they reflect high intensity light reaching them.
(d) both (a) and (b) are true.

22. Dispersion of light takes place by a glass prism because:
(a) the light of different colours have different intensities.
(b) the light of different colours have different energies.
(c) the light of different colours have different speed in a medium.
(d) different colours have different frequencies.

23. Which colour of light is mainly scattered by large sized particles?
(a) Blue
(b) Red
(c) White
(d) Violet

24. Study the given diagram explaining the formation of rainbow in the sky:

Select the correct statements w.r.t. the diagram above.
(a) Dispersion occurs at point A
(b) Internal refraction occurs at point B
(c) Internal reflection occurs at point A
(d) Dispersion occurs at point B

Section – B

25. Which two metals do not corrode easily?
(a) Gold and Platinum
(b) Gold and Iron
(c) Zinc and Iron
(d) Aluminium and Zinc

26. A blue coloured salt turns white when heated but regains its blue colour when moistened with water as shown in figure below:

The salt is:
(a) FeSO₄.7H₂O
(b) CuSO₄.5H₂O
(c) Na₂CO₃.10H₂O
(d) CaSO₄.2H₂O

27. Why is sodium metal never left open in air?
(a) It melts at room temperature.
(b) It reacts with moisture present in air violently.
(c) It reacts with oxygen present in air violently.
(d) Both (b) and (c).

28. Which of the following option is/are the correct representation of the formula for the compound CaCl₂?

29. Name the substance obtained by the action of chlorine on dry slaked lime.
(a) Washing soda
(b) Hypochloride
(c) Baking soda
(d) Bleaching powder

30. A salt is obtained using common salt as a raw material. It is used in glass, soap and paper industries and also used in the manufacture of sodium compounds such as borax.
Identify the salt.
(a) Caustic soda
(b) Bleaching powder
(c) Baking soda
(d) Washing soda

Question No. 31 to 34 consist of two statements– Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
Options:
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

31. Assertion (A): Baking soda solution is applied on the area stung by bee or ant.
Reason (R): Baking soda is base and neutralises formic acid injected into the area by the insect.

32. Assertion (A): Silver bromide is used on photographic and X-ray film.
Reason (R): Silver bromide is photosensitive and change to silver and bromine in presence of sunlight and undergoes decomposition reaction.

33. Assertion (A): When we blow into a testtube containing lime water, it turns milky.
Reason (R): This shows the presence of CO₂ in the exhaled air.

34. Assertion (A): The twinkling of starts is due to the fluctuation in the refractive index of the earth’s atmosphere.
Reason (R): When light propagates from one medium to another the direction of propagation deviates.

35. A student performed an experiment by taking different metals and dipping them in salt solutions in test tubes marked 1, 2, 3 and 4 as shown in the figure below:

Indicate the correct option from the given table which represents any reaction taking place in the test tubes:

36. The products of anaerobic respiration in yeast are:
(I) Ethanol
(II) Lactic acid
(III) Carbon dioxide
(IV) Water
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) Both (II) and (IV)
(d) Both (I) and (III)

37. Which is the basic filtration unit present in the kidneys.
(a) Neuron
(b) Bowman’s capsule
(c) Nephrons
(d) DCT

38. The exchange of material between the blood and surrounding cells takes place through:
(a) Arteries
(b) veins
(c) Capillaries
(d) Nephrons

39. An object is placed 40 cm from the concave mirror with a focal length of 20 cm. The image formed is:
(a) behind the mirror
(b) between the mirror and focus
(c) at focus
(d) centre of curvature of mirror

40. What is the magnification of the images formed by plane mirror?
(a) m > 1
(b) m < 1
(c) m = 1
(d) m = ∞

41. Four statements on blood are given below.
Select the incorrect statements:
(I) Blood is a fluid connective tissue.
(II) Blood consists of a solid medium called plasma in which the cells are suspended.
(III) Plasma transports food, carbon dioxide and nitrogenous wastes in gaseous form.
(IV) Many other substances like salts, are transported by the blood.
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) Both (III) and (IV)
(d) Both (I) and (IV)

42. The given graph show how the amount of carbon dioxide taken in by a plant varies though a 24 hours period.

At what time the rate of photosynthesis is greatest?
(a) 4 pm
(b) 10 am
(c) 6 am
(d) 12 pm

43. The nature of image formed by a spherical mirror for an object OA placed as shown in the figure will be:
(a) Real, inverted and enlarged
(b) Virtual, erect and enlarged
(c) Real, inverted and diminished
(d) Virtual, erect and diminished

44. Two thin lenses of power + 2.5 D and – 0.5 D are placed in contact. The power and focal length of the lens combination is:

45. Students were asked to determine the focal length of the given concave lens. Four students performed an experiment and obtained an image of a tree, position at same distance from the lens. Which diagram is the correct representation for the formation of the image?

46. An object is placed at a large distance in front of a convex mirror of radius of curvature 40 cm. What is the distance of image from the mirror?
(a) 40 cm
(b) 20 cm
(c) 60 cm
(d) 80 cm

47. The lower half of the lens is covered with black paper. What will be the effect on the image formed on screen?

(a) the lower half of the image disappears.
(b) the upper half of the image disappears.
(c) the image remains same.
(d) the image becomes less brighter than before.

48. Which metals do not react with water at all?
(a) Pb
(b) Zn
(c) Cu
(d) Both (a) and (c)

Section – B

Q. 49 to 52 are based on Case Study–1
Case 1: Apoorna took a lime solution and passed a gas ‘X’ through it. The solution becomes turgid.
This solution was then divided into two parts. In the first part, more of gas ‘X’ was passed. While in the second part concentrated sulphuric acid was added.
A white precipitate was formed in second part.

49. The gas mentioned in above passage is:
(a) O₂
(b) H₂S
(c) CO₂
(d) H₂

50. Ca(HCO₃) is:
(a) soluble in water
(b) partly soluble in water
(c) insoluble in water
(d) partly insoluble in water

51. Lime water and chlorine reacts to form:
(a) CaCl₂
(b) CaOCl₂
(c) Ca(ClO₃)₂
(d) CaO₂Cl₂

52. Lime water turns milky in the reaction due to the:
(a) Formation of calcium carbonate
(b) CO2 gas evolved
(c) Formation of calcium bicarbonate
(d) Oxygen gas is evolved

Q. 53 to 56 are based on Case Study–2
Case 2: The biological process involved in the removal of harmful metabolic wastes from the body is called excretion. Different organisms use varied strategies to do this. Many unicellular organisms remove these wastes by simple diffusion from the body surface into the surrounding water while complex multicellular organisms use specialised organs to perform the same function.

53. The excretory system of human beings include:
(a) a pair of kidney, a pair of urinary bladders, a ureter, and a urethra.
(b) a kidney, a ureter, a urinary bladder and a urethra.
(c) a pair of kidney, a pair of ureters, a pair of urinary bladders and a urethra.
(d) a pair of kidney, a pair of ureters, a urinary bladder and a urethra.

54. The given figure represent the structure of a nephron.

Which of the following is responsible for concentrating the solute in the filtrate?
(a) Q
(b) S
(c) R
(d) P

55. Which of the following statement(s) is (are) true about excretion in human beings?
(I) Urine is stored in the urethra until the urge of passing it out.
(II) Kidneys are the primary excretory organs.
(III) The bladder is muscular, so it is under nervous control.
(IV) Each kidney has large numbers of filtration units called nephrons.
(a) (I) and (II) only
(b) (I) and (III) only
(c) (II), (III) and (IV)
(d) (II) and (IV) only

56. Study the table below and select the incorrect match.

Q. 57 to 60 are based on Case Study–3
Case 3: Study the given experiment. The formation of an image for an object PQ placed in front of a convex lens is shown in figure.

57. The image is formed:
(a) at force F₁
(b) at infinity
(c) beyond 2F₁
(d) at centre of curvature C₁

58. What will be the nature of the image formed by convex lens:
(a) real and inverted, diminished
(b) virtual and erect of same size as that of object
(c) real and inverted, magnified
(d) virtual and erect magnified

59. Which diagram represent the correct ray diagram:

(a) (I)
(b) (II)
(c) (III)
(d) (IV)

60. If the focal length of the lens is 4 cm and object is placed at 6 cm from optical centre the image will be formed at:
(a) 2.4 cm from O
(b) 4.8 cm from O
(c) 24 cm from O
(d) 48 cm from O