CLASS-10 UP BOARD SCIENCE (824 IJ) 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. The image formed by a convex mirror is always: between the centre of curvature and the focus between the centre of curvature and infinity between the pole and the focus anywhere, depending upon the position of the object None 2. When light rays move away from the normal while going from one medium to another, then they move from a denser medium to a rarer medium a rarer medium to a denser medium a medium of low refractive index to a medium of high refractive index a transparent medium to an opaque medium None 3. The focal length of a convex lens is 15 cm. The image of an object placed 30 cm away from lens will be: Real, inverted, of the same size as the object at 30 cm towards the object Real, inverted, of the same size as the object at 30 cm on the other side of lens Real, inverted, of the same size as the object on the other side of object at 15 cm Virtual, erect, of the same size as the object at 15 cm towards the object None 4. When white light passes through a prism, the colour of the emergent light distant from the base of prism is: Red Yellow Blue Violet None 5. Ampere-second is the unit of: Electrical energy Electromotive Force (e.m.f.) Charge Electric current None 6. Two wires of resistances $R_1$ and $R_2$ are joined in parallel. Their equivalent resistance will be: $(R_1 + R_2)$ $(R_1 × R_2)$ $ \begin{aligned} \frac{R_1 \times R_2}{R_1 + R_2} \end{aligned} $ $\begin{aligned} \frac{R_1 + R_2}{R_1 × R_2} \end{aligned}$ None 7. Unit of intensity of magnetic field is: Newton/Ampere.metre$^2$ Newton/Ampere-metre Newton-Ampere.metre Newton$^2$/Ampere-metre None 8. The structural formula of methane is: None 9. The homologous series in the following is: C$_2$H$_4$, CH$_4$ CH$_4$, C$_2$H$_6$ C$_2$H$_6$, CH$_3$OH C$_2$H$_4$, C$_2$H$_2$ None 10. Chemical formula of Lead Nitrate is: Pb(NO$_3$)$_2$ PbO Pb(NO$_2$)$_2$ PbNO$_2$ None 11. The pH value of pure water is: 0 1 7 14 None 12. Antimony is: Metal Non-metal Metalloid Alloy None 13. Complete the following chemical equation: $$CH_3COOH + C_2H_5OH \overset{\text{Conc.}}{\underset{\text{H$_2$SO$_4$}}{\xrightarrow{\hspace{1cm}}}} {\underline{\hspace{1.5cm}}} + H_2O$$ CH$_3$OH C$_2$H$_5$OH CH$_3$COOC$_2$H$_5$ CH$_3$CH$_2$COOH None 14. Energy currency in cellular process is: Mitochondria ATP Glucose Pyruvate None 15. Bile juice is secreted by: Gall bladder Liver Pancreas Stomach None 16. Pollen sac contains: Sepals Ovary Ovules Pollen grains None 17. Buds on leaf develop in: Mint Potato Bryophyllum All of the above None 18. Example of unisexual flower is: Flower of Papaya Flower of Rose Flower of Mustard Flower of Mango None 19. Normal blood pressure of a healthy human is: 140/80 120/80 135/100 125/115 None 20. Which of the following constitutes a food chain? Grass, Wheat and Mango Grass, Goat and Human Goat, Cow and Elephant Grass, Fish and Goat None 1 out of 20 Thanks for taking Quiz! If you need any help or you have any suggestions, please comment here. (Optional)