Home > Class 10 Science > Quizzes > Class 10 Olympiad Science Mock Test 4
Class 10 Olympiad Science Mock Test 4
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 0% • Most missed: “A copper rod is dipped into each of the three test tubes P, Q and R containing A…”
Class 10 Olympiad Science Mock Test 4
Time left 00:00
25 Questions

1. Which of the following does NOT exist in a balanced ecosystem?
2. What are 'X' and 'Y' in the given reaction?
3. Which of the following is subjected to roasting to concentrate the ore?
4. The ion + 4 XH can be represented by the dot and cross diagram shown below. To which group in the periodic table does X belong?
5. Which acid completely dissociates when dissolved in water?
6. Where does the fertilization of the female egg usually occur in human beings?
7. The pH of a solution is 2. When the pH changes to 6, then the H+ ion concentration
8. An element 'P' bonds with chlorine to form an acid. Identify 'P'.
9. Ethanoic acid is used in the
10. A dentist uses a concave mirror to examine a small cavity to get a
11. Which of the following foods, when consumed in excess, will cause deposition of fats in blood vessels?
12. Three resistors of 6W each are connected in parallel. Three such combinations are then connected in series to a 3 V battery. Find the current flowing through each resistor.
13. Which of the following human activities is considered as the conservation of living things?
14. Which of the given groups has a negative valency?
15. Which metal is used to connect solar cells in a solar panel?
16. Which of the following completes the given equation?
17. Which of the following is the seat of intelligence and control voluntary actions in the brain?
18. Number of ova released at a time in female human beings is
19. A copper rod is dipped into each of the three test tubes P, Q and R containing AgNO3, FeSO4 and ZnSO4 solutions respectively. In which test tube no (chemical) displacement reaction occurs?
20. Identify the constituent metals of sterling silver.
21. If an electron revolves in the path of radius of 0.5 x 10–10 m at a frequency of 5 x 1015 cycles s-1, then find the electric current in the circle.
22. The difference between an A.C. and a D.C. generator is
23. In a domestic electric supply the earthpin of a plug is made thicker because
24. Sudden and heritable change in a character of an organism is called
25. Genetics is the branch of science which deals with the study of

⚡ Recently practiced quizzes in this topic
Live quiz activity
Class 10 Olympiad Science Mock Test 5 Class 10 Olympiad Science Mock Test 7 MCQs for Metals and Non-Metals Class 10 Olympiad Science Mock Test 8 MCQs for Life Process Class 10 Olympiad Science Mock Test 1 MCQs for Periodic Classification of Elements Class 10 Olympiad Science Mock Test 6 Class 10 Olympiad Science Mock Test 2 MCQs for Heredity and Evolution
 
❤ If you liked Fatskills, consider supporting us by checking out The Life Manuals You Never Got.

🌈  Our mission is to help improve your scores in any subject and exam withonline quizzes, practice tests, study guides, & advice for students. Since 2018.
About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | OSHA Basics Quiz | What Should We Know?
Privacy | Terms |
Without work one finishes nothing. - Ralph Waldo Emerson
© 2026 Fatskills.com

All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.