CLASS-10 UP BOARD SCIENCE (824 IL) 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. Which mirror should be used to form an apparent and enlarged image of an object? Convex Concave Plane None of the above None 2. Which lens should be used to form an apparent and enlarged image of an object? Convex Concave Plane None of the above None 3. The reason for the blue colour of the sky is: Reflection Refraction Scattering Dispersion None 4. The speed of light is maximum in: water glass diamond vacuum None 5. If three resistors of different values of resistance are connected in a series combination, then all of them will definitely have the same value of: Potential difference between their ends Amount of heat produced in them Electric current flowing through them None of the above None 6. In an electrical circuit, the unit of potential difference between the ends of a resistance is: Ohm Ampere Volt Watt None 7. In a magnetic field, the direction of the force acting on a current carrying conductor perpendicular to the field is: Parallel to the direction of magnetic field Parallel to the direction of current flowing in the conductor Perpendicular to both these directions None of the above None 8. General formula of alkanes is: $C_nH_{2n-2}$ $C_nH_{2n+2}$ $C_nH_{2n}$ $C_2H_4$ None 9. Homologous series in the following are: i) $C_2H_4$ and $C_3H_6$ii) $CH_3OH$ and $CH_3CHO$iii) $HCHO$ and $CH_3CHO$iv) $C_2H_5OH$ and $CH_3OCH_3$ i) and ii) i) and iv) ii) and iv) i) and iii) None 10. Which of the following metal forms hydrogen gas with cold water? Copper Gold Potassium Aluminium None 11. Solution having zero pH is: acidic alkaline neutral None of the above None 12. Which of the following compound is formed by combining $CO_2$ and $H_2O$ in the presence of sunlight and chlorophyll? Glucose $CHCl_3$ $CCl_4$ $CFCl_3$ None 13. Which of the following compound is used to complete the following chemical equation? $$CH_3COONa + {\underline{\hspace{1.5cm}}} \overset{\text{CaO}}{\xrightarrow{\hspace{1cm}}} CH_4 + Na_2CO_3$$ $KOH$ $NaOH$ $NH_4OH$ $Ca(OH)_2$ None 14. Function of phloem in plants is: Transportation of water and minerals Transpiration Translocation of foods None of the above None 15. In humans, digestion starts with which organ? From mouth From liver From small intestine From gall bladder None 16. In humans, digestion starts with which organ? From mouth From liver From small intestine From gall bladder None 17. Growth hormone is secreted by the: Thyroid gland Pituitary gland Adrenal gland Pancreas None 18. Which one of the following is formed inside the anther? Calyx Pollen grain Ovary Embryo sac None 19. Reproductive organ of flower is: Calyx Corolla Gynoecium Stem None 20. Atmospheric ozone layer protects the Earth from: X-rays Ultraviolet rays Gamma rays None of the above None 1 out of 20 Thanks for taking Quiz! If you need any help or you have any suggestions, please comment here. (Optional)