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Class 10 Olympiad Science Mock Test 1
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Class 10 Olympiad Science Mock Test 1
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25 Questions

1. The sheath which covers the axon of a neuron is made up of
2. What is the colour of clouds when the earth is not surrounded by layers of atmosphere?
3. Which of the following statements is NOT true?
4. What causes greatest blood pressure during ventricular systole?
5. Human arm is homologous with
6. Which of the statements about the reaction, ZnO + CO ® Zn + CO2, is correct?
7. Elements P, Q+1, R+2 and S have 11, 18, 18 and 55 electrons respectively. Identify the set of elements belonging to the same group.
8. What is the potential difference between the live wire and the neutral wire in domestic circuits?
9. The set of chromosomes that represent male chromosomes are
10. If the refractive index of diamond is 2.42, then the speed of light when passing through diamond
11. The blind spot on the retina has
12. What is substance 'X' in the given bell jar experimental setup to show that carbondioxide is essential for photosynthesis?
13. What product is formed when ethanol is oxidised with alkaline potassium permanganate?
14. The glass bulb of an electric bulb is sealed to
15. The metal which is more hard and corrosion resistant is
16. Focal length is the distance from the
17. Which compound contains a replaceable hydrogen?
18. Which gas is used in flush bags of chips to prevent oxidation?
19. What happens when pellets of calcium are added to the water?
20. What is the potential difference across the 2 Ohms resistor in the circuit shown below?
21. Which of the following strongly suggests that a solid element X is a non-metal?
22. Which human activity is considered as the conservation of living things?
23. Identify an example of exo and endocrine gland.
24. An element having atomic number 34 is placed in which group and period in the modern periodic table?
25. Why are the alloys nichrome and manganin commonly used as heating elements?

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