CLASS-10 UP BOARD SCIENCE (824 IM) Previous Year Paper 2024 Instructions: 1️⃣ Click on Start Quiz 2️⃣ Answer 20 Questions 3️⃣ Click Submit 4️⃣ Get Score & Correct Answers 🎯 Practice + Patience = Perfection! 🎯 Name Email 1. A ray of light incident on a concave mirror retraces its path after reflection from the mirror. The ray intersects principal axis at focus in between focus and pole centre of curvature infinity None 2. A lens for certain position of the object forms an imaginary, erect and magnified image of the object. The lens will be concave convex plano-concave none of these None 3. Focal length of eye lens is changed by pupil retina iris ciliary muscles None 4. Optical phenomenon responsible for blue colour of clear sky is refraction scattering diffraction reflection None 5. 440 W, 220 V is marked on an electric bulb. The resistance of the filament of the bulb will be 100 ohm 225 ohm 115 ohm 110 ohm None 6. Symbols of few components used in electrical circuits are given in $\textbf{column A}$. Match with names given in $\textbf{column B}$ and choose the correct option: (1)-(iii), (2)-(iv), (3)-(ii), (4)-(i) (1)-(iii), (2)-(ii), (3)-(iv), (4)-(i) (1)-(ii), (2)-(iii), (3)-(iv), (4)-(i) (1)-(iii), (2)-(ii), (3)-(i), (4)-(iv) None 7. A freely suspended current carrying solenoid always rests in east-west north-east north-south any direction None 8. Which of the following metals is not in solid state at room temperature? Magnesium Mercury Copper Aluminium None 9. Reaction between acid and base gives Hydrogen Oxygen Chlorine Salt and water None 10. Following reaction $$CaCO_3(s)\overset{\text{(on heating)}}{\xrightarrow{\hspace{1cm}}} CaO (s) + CO_2 (g)$$ is an example of displacement reaction double displacement reaction decomposition reaction combination reaction None 11. Which atom has the property of catenation? C N O F None 12. Alkyne among the following is $CH_3\text{−}CH\text{=}CH_2$ $CH_3\text{−}C\text{≡}C\text{−}H$ $CH_2\text{=}CH_2$ $CH_3\text{−}CH_2\text{−}CH_3$ None 13. __________ is used in the form of fuel and medicine. Ethanol Ethane Ethanoic acid Propane None 14. Unit of kidney, which takes part in the process of excretion is Neuron Nephron Cyton Muton None 15. Xylem in the plants is responsible for Transport of water Transport of food Transport of amino acids Transport of oxygen None 16. Autotrophic nutrition requires Carbon dioxide and water Chlorophyll Sunlight All of these None 17. Pyruvate is oxidized in which part of the cell in presence of oxygen? Cytoplasm Nucleus Mitochondria Endoplasmic reticulum None 18. Why did Mendel conduct his experiment? For the study of inheritance of traits For production of pea For production of rice For production of wheat None 19. Which one of the following is the main substance responsible for ozone layer depletion? Chlorofluorocarbon (CFC) Carbon dioxide (CO$_2$) Carbon monoxide (CO) Nitric acid (HNO$_3$) None 20. Which one of the following make up the food chain? Grass, wheat and mango Grass, goat and human Goat, cow and elephant Grass, fish and elephant None 1 out of 20 Thanks for taking Quiz! If you need any help or you have any suggestions, please comment here. (Optional)