Class 10 Science Sample Paper Term 1 With Solutions Set F

Sample Papers Class 10

Please refer to Class 10 Science Sample Paper Term 1 With Solutions Set F 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 F

Section – A

1. Which of the following includes exothermic process?
(I) Reaction of water with quick lime
(II) Dilution of an acid
(III) Evaporation of water
(IV) Sublimation of camphor (crystals)
(a) (I) and (II)
(b) (II) and (III)
(c) (I) and (IV)
(d) (III) and (IV)

Answer

A

2.

Class 10 Science Sample Paper Term 1 With Solutions Set F

Which of the following properties are shown by solution B?
(I) It is the strongest base among the given substance.
(II) It is used in antacids.
(III) It turns litmus paper to blue.
(a) (I), (II)
(b) (II), (III)
(c) (I), (II), (III)
(d) (I)

Answer

A

3. Name the metal which is liquid at room temperature.
(a) Bromine
(b) Mercury
(c) Gallium
(d) Chlorine

Answer

B

4. A student performed the experiment of heating ferrous sulphate crystals in a boiling tube. She smelt fumes of a pungent gas and saw colours of ferrous sulphate disappear.
Why does the colour of crystal disappear?

Class 10 Science Sample Paper Term 1 With Solutions Set F

(a) Due to decomposition of ferrous sulphate
(b) Due to evolution of sulphur dioxide
(c) Due to formation of ferrous oxide
(d) both (a) and (c)

Answer

D

5. On adding a 3-4 drops of universal indicator to the unknown colourless solutions (P), (Q) and (R) taken separately in three test tubes as shown in the following diagram, Aarav observed that the colour changes to green in (P), red in (Q) and violet in (R).

Class 10 Science Sample Paper Term 1 With Solutions Set F

What is the decreasing order of their pH.
(a) (R) > (P) > (Q)
(b) (Q) > (R) > (P)
(c) (P) > (Q) > (R)
(d) (Q) > (P) > (R)

Answer

A

6. Which of the following cannot be used to prevent food containing fats and oils from becoming rancid?
(a) Adding antioxidants
(b) Keeping food in air tight containers
(c) Flushing food packets with oxygen gas
(d) Storing food in refrigerator

Answer

C

7. Potassium iodide solution is added to lead nitrate solution in a test tube. Select the correct observation from the table below:

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

C

8.

Class 10 Science Sample Paper Term 1 With Solutions Set F

Which of the following is/are true when HCl(g) is passed through water ?
(I) It ionises in the solution.
(II) It does not ionise in the solution as it is a covalent compound.
(III) It forms hydronium ion in the solution due to the combination of hydrogen ion with water molecule.
(IV) It gives both hydrogen and hydroxyl ion in the solution.
(a) (II) only (b)
(IV) only
(c) (I) and (III)
(d) (III) and (IV)

Answer

C

9. Which of the following salts contain water of crystallization?
(I) Gypsum
(II) Baking soda
(III) Copper sulphate
(IV) Washing soda
(a Both (I) and (II)
(b) Both (II) and (IV)
(c) (I), (II) and (III)
(d) (I), (III) and (IV)

Answer

D

10. Identify the type of reaction taking place when water is added slowly to a small amount of calcium oxide in a beaker is:
(I) Exothermic reaction
(II) Endothermic reaction
(III) Combination Reaction
(IV) Displacement reaction
(a) Both (I) and (III)
(b) Both (II) and (III)
(c) Both (I) and (IV)
(d) Both (II) and (IV)

Answer

A

11. The figure given below shows the role of pancreas in digestion of food.

Class 10 Science Sample Paper Term 1 With Solutions Set F

Identify A, B and C and select the correct combination from the table below:

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

C

12. The table below lists the organism in column I and its mode of nutrition in column II.

Class 10 Science Sample Paper Term 1 With Solutions Set F

The correct matching of column I and column II is:
(a) (I) – (D); (II) – (A); (III) – (B); (IV) – (C)
(b) (I) – (C); (II) – (B); (III) – (D); (IV) – (A)
(c) (I) – (D); (II) – (C); (III) – (A); (IV) – (B)
(d) (I) – (A); (II) – (D); (III) – (C); (IV) – (B)

Answer

A

13. Which of the following equation is the correct representation of photosynthesis ?
(a) 6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O
(b) 6CO2 + 12H2O + Chlorophyll + Sunlight → C6H12O6 + 6O2 + 6H2O
(c) 6CO2 + 12H2O + Chlorophyll + Sunlight → C6H12O6 + 6CO2 + 6H2O
(d) 6CO2 + H2O + Sunlight → C6H12O6 + O2 + 6H2O

Answer

B

14. What happens if conducting tube of circulatory system develops a leak?
(a) Blood pressure decrease
(b) Effiiciency of blood circulation decrease
(c) Number of platelets increase at the site of injury
(d) All the above

Answer

B

15. Select the correct statements.
(a) Artery carries oxygenated blood, except pulmonary artery
(b) Artery is thick walled and less elastic
(c) Pulmonary vein carries deoxygenated blood
(d) Veins are higher pressure than arteries

Answer

A

16. Name the cartilaginous flap which closes the opening of wind pipe durings swallowing:
(a) Glottis
(b) Epiglottis
(c) Gullet
(d) Epivalve

Answer

B

17. Study the figure given below.

Class 10 Science Sample Paper Term 1 With Solutions Set F

Select the row containing correct identifica tion of the position of image and magnifica tion produced by the lens:

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

C

18. Which of the following statement is not true?
(a) A conca ve mirror ca n form a magnified virtual image
(b) A convex mirror ca n from a magnified real image
(c) A concave mirror can form a diminished real image
(d) A conca ve mirror ca n form a magnified virtual image.

Answer

C

19. In a given medium the speed of light is 2/3 rd of its speed in vacuum. The absolute refractive index of the medium is:
(a) 3/2
(b) 9/4
(c) 4/9
(d) 2/3

Answer

A

20. An object is placed at the centre of curvature of a concave lens. The distance the between the image and the pole is:
(a) Equal to 2f
(b) Greater than f but less than 2f
(c) Equal to f
(d) Greater than 2f

Answer

A

21. The sky appears da rk to passengers flying at very high altitudes mainly because :
(a) Scattering of light is not enough at such heights.
(b) There is no atmosphere at great heights. 
(c) The size of molecules is smaller than the wavelength of visible light.
(d) The light gets scattered towards the earth.

Answer

A

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

Answer

C

23. Which of the following is true regarding laws of refraction?

Class 10 Science Sample Paper Term 1 With Solutions Set F

(b) The incident ray , the reflected ray and the normal to the interface of two transparent media at the point of incidence, all lie in the same plane.
(c) Snell’s law of refraction is not true for  angle of i is 90°
(d) both (a) and (c)

Answer

A

24.

Class 10 Science Sample Paper Term 1 With Solutions Set F

Which of the following diagram shows dispersion correctly?

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

A

Section – B

25. The table below gives the substances oxidized and reduced in the given equations.

Class 10 Science Sample Paper Term 1 With Solutions Set F

Which of the following options are correct?
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) Both (I) and (IV)
(d) Both (II) and (IV)

Answer

B

26. The nature of Calcium phosphate present in tooth enamel is:
(a) Acidic
(b) Basic
(c) Neutral
(d) Amphoteric

Answer

B

27. Generally no hydrogen gas is evolved when metal reacts with dilute nitric acid. Select the statement with correct explanation.
(a) Nitric acid is a strong reducing agent
(b) Nitric acid is a strong oxidising agent oxidises hydrogen into water and itself get reduced to Oxide of Nitrogen
(c) NH3 gas is evolved instead
(d) Nitric acid is a strong oxidising agent oxidises hydrogen into water and itself get reduced HCl.

Answer

B

28. Sanket’s teacher arranged the apparatus as shown below to demonstrate the action of steam on metals.

Class 10 Science Sample Paper Term 1 With Solutions Set F

Which of the following metals do not react either with cold water or with hot water but only with steam?
(I) Al (II) Cu
(III) Pb (IV) Fe
(a) Both (I) and (II)
(b) Both (II) and (III)
(c) Both (I) and (IV)
(d) Both (III) and (IV)

Answer

C

29. Study the flowchart given below where substances have been labelled as A, B and C:

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

A

30. A student performed the following activity to find the electrica l conductivity of some substances by dissociating into ions. 
He took samples of dil.HCl, glucose, dil.NaOH and alcohol one by one and completed the circuit as shown below:
Which of the samples will conduct electricity?
(I) Dil. HCl (II) Dil. NaOH
(III) Glucose (IV) Alcohol
(a) Only (I)
(b) Only (II)
(c) Both (I) and (II)
(d) (I), (II) and (IV)

Answer

C

For question numbers 31 to 34, two statements are given- one labeled Assertion (A) and the other labeled Reason (R). Select the correct answer to these questions from the codes (a), (b),
(c) and (d) as given below:
(a) Both A and R are true, and R is correct explanation of the assertion.
(b) Both A and R are true, but R is not the correct explanation of the assertion.
(c) A is true, but R is false.
(d) A is false, but R is true.

31. Assertion (A): The aqueous solutions of glucose and alcohol show acidic character.
Reason (R): Aqueous solutions of glucose and alcohol give OH+ ions.

Answer

C

32. Assertion (A): In a reaction between copper and oxygen, copper act as a reducing agent.
Reason (R): The compound which gains oxygen in a chemical reaction serves as a reducing agent.

Answer

A

33. Assertion (A): In plants there are no specialised respiratory organs.
Reason (R): Plants do not require great demands of gaseous exchange.

Answer

A

34. Assertion (A): On a clear summer night twinkling of stars is observed.
Reason (R): The twinkling of stars is caused by dispersion of star light by the atmosphere.

Answer

C

35. Identify the cations and anions present in aluminium oxide:

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

C

36. The respiratory organ of Earthworm is:
(a) Skin
(b) Trachea
(c) Gills
(d) Tracheoles

Answer

A

37. The amount of water re-absorbed as urine flows along the tube depends on:
(I) How much excess water there is in the body
(II) How much of dissolved waste is there to be excreted
(III) How much of excess glucose is to be excreted
(IV) How much of salt and amino acid is to be excreted.
(a) Only (I)
(b) Both (I) and (Ii)
(c) Both (I) and (IIII)
(d) (I), (II) and (IV)

Answer

B

38. A student Rudra took some freshly prepared lime water in two test tubes marked A and B.
He blew air through the lime water in test tube A.
He then used a syringe or pichkari and passed air through the fresh lime water in test tube B.

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

C

39. Power of a lens is + 3 D. What will be the focal length of the lens?

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

B

40. The letter appear to be raised when viewed through a glass slab placed over the document. What is the phenomenon called?
(a) Reflection
(b) Refraction
(c) First reflection, then refraction
(d) First refraction then reflection

Answer

B

41. The correct function of parts labelled ‘A’ and ‘B’ in the figure below is:

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

A

42. Select the incorrect statements:
(I) Pyruvate can be converted into lactic acid by yeast
(II) Fermentation is a form of anaerobic respiration
(III) Fermentation takes place in mitochondria
(IV) Fermentation takes place in yeast
(a) Both (I) and (II)
(b) Both (I) and (III)
(c) Both (II) and (III)
(d) Both (II) and (IV)

Answer

B

43. The image formed by a convex mirror of focal length 30 cm is a quarter of the object. The object distance and image distance, along with the sign convention, are tabulated below. Select the row containing the correct values of object and image distance:

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

A

44. A security mirror used in a big showroom has radius of curvature 5 m. If a customer is standing at a distance of 20 m from the cash counter, find the position, nature and size of the image formed in the security mirror.

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

B

45. Sonam went to a palmist to show her palm. The palmist used a special lens for this purpose. Select from the table below the correct nature of the lens and position where the palmist should hold the lens so as to have an erect and magnified image of her palm.

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

D

46. Two lenses L1 and L2 having focal length 20 cm and 5 cm respectively are placed in contac t as shown in the figure.

Class 10 Science Sample Paper Term 1 With Solutions Set F

The power and focal length of the combination is:

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

D

47. The table below gives the refractive index of four media A, B, C and D:

Class 10 Science Sample Paper Term 1 With Solutions Set F

Select the correct option:
(a) The speed of light is maximum in medium A and minimum in medium D.
(b) The speed of light is minimum in medium C and maximum in medium D.
(c) The speed of light is maximum in medium A and minimum in medium B.
(d) The speed of light is maximum in medium B and minimum in medium C.

Answer

A

48. The products formed when metals react with dilute acids are:
(a) Salt and water
(b) Salt and hydrogen gas
(c) Salt and carbon dioxide gas
(d) Salt, water and carbon dioxide gas

Answer

B

Section – B

Q. 49 to 52 are based on Case Study–1
Case 1: Prisha is baker. She added the ingredients according to the recipe and placed it in the oven. 
When the cake was ready, she took it out from the oven. She was surprised as the cake hard instead of soft and fluffy.

Class 10 Science Sample Paper Term 1 With Solutions Set F

49. Which of the following ingredient did she miss to add while preparing the cake?
(a) Soda water
(b) Washing soda
(c) Soda ash
(d) Baking soda

Answer

D

50. What is the chemical formula of the missing ingredient?
(a) NaHCO3
(b) Na2CO3
(c) Na2CO3. 10H2O
(d) Na2CO3

Answer

A

51. NaHCO3 formed by reaction of:
(a) NaOH + H2CO3
(b) NaCl + H2CO3
(c) Na2CO3 + HCl
(d) NaOH + HCl

Answer

A

52. The nature of missing ingredient is
(a) Acidic
(b) Basic
(c) Neutral
(d) Highly acidic

Answer

B

Q. 53 to 56 are based on Case Study–2
Case 2: Plants use relatively slow transport system as they have low energy needs. The distances over which transport systems have to operate, however, can be very large in plants such as very tall tress, Plant transport systems move energy stores from leaves and raw materials from roots.

53. The given figure represents the movement of water and minerals is xylem and movement of food in phloem.

Class 10 Science Sample Paper Term 1 With Solutions Set F

Choose the correct combination of plots provided in the following table.

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

B

54. Given graph shows the rates of water absorption and transpiration of a plant during a 24-hour period.

Class 10 Science Sample Paper Term 1 With Solutions Set F

The difference between the rates of transpiration and water absorption between 00:00 and 06:00 hours is due to :
(a) Rate of absorption is always higher than rate of transpiration
(b) The rate of absorption is higher than the rate of transpiration during the day but decreases at night.
(c) Rate of absorption is always equal to rate of transpiration
(d) The rate of absorption fell behind the rate of transpiration during the days, but exceeds it at night.

Answer

D

55. Select the incorrect match:

Class 10 Science Sample Paper Term 1 With Solutions Set F
Answer

C

56. Which of the following statement are true with respect to transport in plants?
(I) This transport of soluble products of photosynthesis occurs in phloem.
(II) Beside water, xylem also transports amino acids and other substances.
(III) The translocation in phloem is achieved by utilising energy.
(IV) Transpiration helps in the absortion.
(a) (I) and (II) only
(b) (II) and (III) only
(c) (I), (II) and (III) only
(d) (I), (III) and (IV) only

Answer

D

Q. 57 to 60 are based on Case Study–3
Case 3: When a beam of light strikes such fine particles, the path of the beam becomes visible.
The light reaches us after being reflected diffusely by these particles. The phenomenon of scattering of light by the colloidal particle is known as Tyndall effect. Tyndall effect can be observed when sunlight passes through a canopy of dense forest.

57. If the size of the scattering particles is large then:
(a) The scattered light may appear red
(b) The scattered light may appear blue
(c) The scattered light may appear white
(d) The scattered light may appear yellow

Answer

C

58. The colour of scattering light depends upon:
(a) Nature of particles
(b) Size of particles
(c) Volume of particles
(d) Density of Particle

Answer

B

59. The phenomenon of scattering of light by colloidal particles is known as:
(a) Tynda ll effect
(b) Corona effect
(c) Dispersion effect
(d) Both (a) and (c)

Answer

A

60. The blue colour of the sky is due to the:
(a) Red light is absorbed
(b) Red light is preferentially scattered
(c) Blue is the natural colour of sky
(d) Blue light is perferentially scattered

Answer

D