Quarterly Exam 2023 : Class 10 Science Model Question Paper I

 Quarterly Exam 2023 : Class 10 Science Model Question Paper 

                                     CLASS 10 SCIENCE OBJECTIVE QUESTIONS FOR 30 MARKS

                                              Objective questions will be asked mainly in 5 types

1.Choose the correct option

2. Write the answer in one word/sentence

3. fill in the blank

match 4 correct pairs

5. write true/false

                                               

                           Quarterly Exam 2023-24

                          model question paper

                             Subject: Science

                             Class: 10th

Time - 3.00 hours Number - 75

Instructions:-1. It is compulsory to attempt all the questions.

  2.Question no. Internal options are given from 06 to 23.

  3. Question no. Marks 01 to 05 are objective type questions. Separate marks are prescribed for each question.

4. Marks for each question are indicated against it.

5. Question no. Answer questions from 06 to 15 in 30-40 words each.

6.Question no. Answer each question from 16 to 19 in about 75-80 words.

7. Question no. Answer each question from 20 to 23 in about 120 words.

Question 1. Write the correct option- 1×6=6

i. Fe2O3 + 2Al = Al2O3 + 2Fe What type of reaction is given?

   A Combination reaction B Double displacement C Dissociation reaction D Displacement reaction

II. What type of reaction occurs with calcium oxide with water?

(A) Endothermic (B) Exothermic (C) Absorbent (D) Explosive

III.Is a human being?

   A. Vegetarian B. Carnivore C. Parasite D. Omnivore

iv. Which of the following salts does not contain water of crystallization?

(a) Blue powder (b) Baking soda (c) Washing soda (d) Gypsum

v. Which lens is used in vehicles to see the vehicles coming behind (rear mirror)

(a) Convex (b) Concave (c) Plane (d) All of them

vii The parts of human eye which are donated are-

(a) Cornea (b) Iris (c) Pupil (d) Retina

Question 2. Fill in the blanks – 1×6 = 6

i. Decomposition of green vegetables to become compost is an example of ------------- reaction.

II. -------------percentage of energy is transferred at each trophic level of the food chain. I

iii. The lens present in the human eye is --------------------

iv Testosterone hormone is secreted from ---------- gland.

v. A spherical mirror whose reflecting surface faces inward is called ------------

vi. In a prism, the emergent ray makes an angle with the direction of the incident ray. This angle is called --------

  

Question 3. Match the correct pair 1×6= 6

                   A                        B

  hole in the ozone layer - diopter

Renal Unit -                Face View

Plane Mirror -            Nephron

Master Gland -                  CFC

 Measure of lens ability -   pituitary

  sky blue -                          scattering

Question.4. Write the answer in one sentence. 1×6 = 6

i. What is food web?

ii.What are called reactants?

iii. What is called the energy currency of cellular processes?

iv.What type of optical phenomenon is the desert mirage?

v. Name the abiotic components of an ecosystem.

vi.Which color of light has the longest wavelength?

Question.5 – Write True/False 1×6 =6

   i. Are third consumers always non-vegetarian?

II. Is the twinkling of stars the result of reflection?

iii. The full name of ATP is aminosine diphosphate?

iv.The formula of slaked lime is CaCO3?

v. Endocrine glands are tubeless

 vii. Refractive index of air is greater than that of diamond.

Question.6. Write the chemical equation of what type of reaction is the burning of magnesium (2)

                                 Or

Why are packets of potato chips spiked with nitrogen?

Question 7. What is exothermic reaction? Write an example? (2)

                            Or

What is endothermic chemical reaction? Write an example?

Question 8. Why is sodium kept immersed in kerosene oil? (2)

                      Or

Why is it necessary to balance chemical equations?

Question 9. What is nutrition? (2)

                  Or

Which component of blood starts decreasing in dengue disease?

Question 10. Write two functions of xylem or phloem? (2)

Question 11. Write the name and equation of the process by which green plants make their food? (2)

                                   Or

       Write the definition of respiration?

Question 12. Why are mitochondria called the energy house of the cell? (2)

                                Or

       Write what are the functions of platelets in blood?

Question.13. What is reflection of light? (2)

                              Or

       What are spherical mirrors? Write their uses.

Question 14. How can a convex mirror and a concave mirror be differentiated? Write any two?

                            Or

            Write Snell's law. (2)

   

Question 15. Write two differences between converging and diverging lenses. (2)

                                     Or

     Find the focal length of a convex lens whose power is -2 D.

Question 16. What is oxidation and reduction? (2)

                              Or

   Write the role of saliva in digestion of food.

Question 17. Write two uses of plaster of Paris.    2

                         Or

Write two uses of bleaching powder.

Question 18. What are hormones? Write the names of any two plant hormones. (3)

                                   Or

What are endocrine glands, write the names of any two and the hormones released from them.

Question 19. Make a clearly labeled picture of human eye? (3)

                        Or

What could be the reason for a person not seeing the near objects clearly?

         Write the name of this defect and write the solution to remove it.

Question 20. Make a labeled diagram of a nerve cell 3

                       Or

               draw a labeled diagram of the human brain

Question 21. What is Milk of Magnesia? Write the formula and use (4)           

                                       Or

  Write any four differences between artery and vein 

Question 22 What is double circulation in humans? Explain why it is necessary (4)

             Or

What is the difference between aerobic and anaerobic respiration? Write the names of some organisms in which anaerobic respiration occurs.

Question 23: What is acid rain? Write its side effects. (4)

                                        Or

Write the chemical name, formula and use of backing soda.

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