Assertion Reason Questions class 10 Science Quiz

Assertion Reason Questions for class 10 Science CBSE QUIZ 3

Here is the QUIZ for Assertion Reason Questions for class 10 Science CBSE. This quiz includes Assertion Reason Questions for class 10 Science CBSE from all the chapters mentioned here :

Chemical Reactions and Equations
Acids, Bases, and Salts
Metals and Non-Metals
Carbon and Its Compounds
Life Processes
Control and Coordination
How Do Organisms Reproduce?
Heredity
Light – Reflection and Refraction
The Human Eye and the Colorful World
Electricity
Magnetic Effects of Electric Current
Our Environment

How to Attempt :

Click on the button to start the quiz.
Select the correct option.
After selecting the option you will be guided to the next question.
After finishing the quiz, you will get your score with the correct answers.

GENERAL INSTRUCTIONS

(A) Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
(B) Both Assertion (A) and Reason (R) are true, but Reason (R) is NOT the correct explanation of Assertion (A).
(C) Assertion (A) is true, but Reason (R) is false.
(D) Assertion (A) is false, but Reason (R) is true.

Tips:

Analyze each statement independently before considering their relationship.
Pay attention to logical connections between the Assertion and the Reason.
Use subject knowledge to verify the accuracy of the statements.

Fill this form with correct information.

1 / 25

1. Assertion (A): Sexual reproduction increases genetic diversity and plays a role in the origin of new species.

Reason (R): Sexual reproduction involves the formation of gametes and fusion of gametes.

A is false but R is true

Both A and R are true and R is not the correct explanation of A.

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

2 / 25

2. Assertion (A): In human males, testes are extra-abdominal organs present inside the scrotum.
Reason (R): Scrotum has a relatively lower temperature needed for the production and storage of sperms.

A is false but R is true

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

Both A and R are true and R is not the correct explanation of A.

3 / 25

3. Assertion (A): Myopia is the defect of the eye in which only nearer objects are seen by the eye.
Reason (R): The eyeball is elongated.

A is true but R is false.

Both A and R are true and R is not the correct explanation of A.

Both A and R are true and R is the correct explanation of A.

A is false but R is true

4 / 25

4. Assertion (A): Urethra in human males acts as a urinogenital canal.
Reason (R): Urethra carries only urine, while sperms are carried out from the body by the vas deferens.

A is false but R is true

Both A and R are true and R is the correct explanation of A.

A is true but R is false.

Both A and R are true and R is not the correct explanation of A.

5 / 25

5. Assertion (A): Variations are seen in offspring produced by sexual reproduction.
Reason (R): DNA molecules generated by replication are not identical to the original DNA.

A is false but R is true

A is true but R is false.

Both A and R are true and R is not the correct explanation of A.

Both A and R are true and R is the correct explanation of A.

6 / 25

6. Assertion (A): The rainbow is seen when the sun is behind the observer.
Reason (R): Rainbow is produced due to the dispersion of white light by small rain drops hanging in the air after the rain.

Both A and R are true and R is not the correct explanation of A.

A is false but R is true

Both A and R are true and R is the correct explanation of A.

A is true but R is false.

7 / 25

7. Assertion (A): A geneticist crossed two pea plants and got 50% tall and 50% dwarf in the progeny.
Reason (R): One plant was heterozygous tall, and the other was dwarf.

Both A and R are true and R is the correct explanation of A.

A is false but R is true

Both A and R are true and R is not the correct explanation of A.

A is true but R is false.

8 / 25

8. Assertion (A): The image formed by a concave mirror is certainly real if the object is virtual.
Reason (R): The image formed by a concave mirror may be virtual if the object is real.

A is true but R is false.

A is false but R is true

Both A and R are true and R is not the correct explanation of A.

Both A and R are true and R is the correct explanation of A.

9 / 25

9. Assertion (A): The height of an object is always considered positive.
Reason (R): An object is always placed above the principal axis in this upward direction.

Both A and R are true and R is not the correct explanation of A.

A is false but R is true

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

10 / 25

10. Assertion (A): Iron articles are galvanized to prevent rusting.
Reason (R): Galvanization is the process of coating the iron article with a thin layer of aluminum.

A is true but R is false.

Both A and R are true and R is not the correct explanation of A.

Both A and R are true and R is the correct explanation of A.

A is false but R is true

11 / 25

11. Assertion (A): Amoeba reproduces by multiple fission.
Reason (R): Generally, unicellular organisms reproduce asexually.

Both A and R are true and R is the correct explanation of A.

A is true but R is false.

A is false but R is true

Both A and R are true and R is not the correct explanation of A.

12 / 25

12. Assertion (A): Magnesium ribbon keeps on burning in the atmosphere of nitrogen.
Reason (R): Magnesium reacts with nitrogen to form magnesium nitride, and this reaction is a combination reaction.

Both A and R are true and R is not the correct explanation of A.

Both A and R are true and R is the correct explanation of A.

A is false but R is true

A is true but R is false.

13 / 25

13. Assertion (A): The various components of an ecosystem are interdependent.
Reason (R): Food chains and webs are formed due to linkage in organisms.

Both A and R are true and R is not the correct explanation of A.

A is false but R is true

Both A and R are true and R is the correct explanation of A.

A is true but R is false.

14 / 25

14. Assertion (A): Chips manufacturers usually flush bags of chips with oxygen to prevent chips from getting oxidized.
Reason (R): Use of antioxidants prevents rancidity.

A is true but R is false.

Both A and R are true and R is not the correct explanation of A.

A is false but R is true

Both A and R are true and R is the correct explanation of A.

15 / 25

15. Assertion (A): The stars twinkle while the planets do not.
Reason (R): The stars are much bigger in size than the planets.

Both A and R are true and R is not the correct explanation of A.

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

A is false but R is true

16 / 25

16. Assertion (A): Ozone layer is getting depleted in the upper atmosphere, and it is a serious cause of concern.
Reason (R): CFC reacts with ozone and breaks it.

A is false but R is true

Both A and R are true and R is not the correct explanation of A.

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

17 / 25

17. Assertion (A): The sex of a child is determined by the mother.
Reason (R): Humans have two types of sex chromosomes: XX and XY.

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

Both A and R are true and R is not the correct explanation of A.

A is false but R is true

18 / 25

18. Assertion (A): HIV-AIDS is a viral disease.
Reason (R): It spreads when infected blood, semen, or vaginal fluid enters the body of a healthy person.

A is false but R is true

Both A and R are true and R is the correct explanation of A.

A is true but R is false.

Both A and R are true and R is not the correct explanation of A.

19 / 25

19. Assertion (A): White light is dispersed into its seven-color components by a prism.
Reason (R): Different colors of light bend through different angles with respect to the incident ray as they pass through a prism.

A is false but R is true

Both A and R are true and R is the correct explanation of A.

Both A and R are true and R is not the correct explanation of A.

A is true but R is false.

20 / 25

20. Assertion (A): A normal eye can clearly see all the objects beyond a certain minimum distance.
Reason (R): The human eye has the capacity of adjusting the focal length of the eye lens.

Both A and R are true and R is the correct explanation of A.

Both A and R are true and R is not the correct explanation of A.

A is true but R is false.

A is false but R is true

21 / 25

21. Assertion (A): The focal length of the convex mirror will increase if the mirror is placed in water.
Reason (R): The focal length of a convex mirror of radius RR is equal to f=R/2f = R/2.

Both A and R are true and R is the correct explanation of A.

A is true but R is false.

Both A and R are true and R is not the correct explanation of A.

A is false but R is true

22 / 25

22. Assertion (A): Polythene bags and plastic containers are non-biodegradable substances.
Reason (R): They can be broken down by microorganisms into natural, simple, and harmless substances.

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

Both A and R are true and R is not the correct explanation of A.

A is false but R is true

23 / 25

23. Assertion (A): Food web consists of only producers.
Reason (R): Specific enzymes are required for the breakdown of substances in the environment.

A is true but R is false.

Both A and R are true and R is not the correct explanation of A.

Both A and R are true and R is the correct explanation of A.

A is false but R is true

24 / 25

24. Assertion (A): The light of violet color deviates the most and the light of red color deviates the least while passing through a prism.
Reason (R): For a prism material, the refractive index is highest for red light and lowest for violet light.

A is false but R is true

Both A and R are true and R is the correct explanation of A.

Both A and R are true and R is not the correct explanation of A.

A is true but R is false.

25 / 25

25. Assertion (A): The child sex ratio is declining at an alarming rate in some sections of our society.
Reason (R): Female foeticide is being carried out recklessly.

Both A and R are true and R is the correct explanation of A.

A is false but R is true

Both A and R are true and R is not the correct explanation of A.

A is true but R is false.

Your score is

The average score is 73%