UP Board Class 10 Science Question Paper 2025 PDF (Code 824 CL) with Answer Key and Solutions PDF is available for download here. UP Board Class 10 exams were conducted between February 24th to March 12th 2025. The total marks for the theory paper were 70. Students reported the paper to be easy to moderate.
UP Board Class 10 Science Question Paper 2025 (Code 824 CL) with Solutions
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Image of an object formed by a concave mirror is real and of the size of the object. The object is placed -
A lemon placed in a beaker full of water appears larger than its real size, when viewed sideways. The light phenomenon responsible is -
Range of clear vision of a normal eye is -
An object is placed on the axis of a concave lens of focal length 20 cm. Image is formed at a distance of 30 cm from the lens. The distance of object from lens will be -
Two resistances each of 10 ohm are connected in parallel. A battery of 10 V is connected with this combination. Amount of charge flowing per second will be -
Match the physical quantities given in Column A with the units given in Column B and choose the correct option:
(1) Electrical resistivity & (i) Coulomb
(2) Electric potential difference & (ii) Watt-hour
(3) Electrical energy & (iii) Joule per coulomb
(4) Electric charge & (iv) Ohm-meter
Two coils of copper wire are placed closer to each other. Due to change in the value of current in one coil, current starts to flow in the other coil. Reason for this phenomenon is -
Complete the following chemical equation:
________ + \(CO_2 \rightarrow \text{CaC}O_3 + \text{H}_2\text{O}\)
Chemical reaction:
\(\text{Fe(s)} + CuSO_4\text{(aq)} \rightarrow \text{FeS}O_4\text{(aq)} + \text{Cu(s)}\)
What type of reaction is this?
Formula for Baking Soda is:
Unsaturated hydrocarbon from the following is:
The bond in diatomic molecule of Nitrogen is:
Homologous series among the following is:
A six carbon molecule, Glucose is broken down into a three carbon molecule, Pyruvate. This process takes place:
Dialysis is related to:
Which of the following is an animal hormone?
The technique of producing many plants from a single plant under infection-free condition is called—
Chlorophyll is important
Physical factor of ecosystem is:
Which of the following is top carnivore?
(i) Show the image formation by a convex mirror by ray diagram when the object is at infinity and
(a) at infinity
(b) in between pole of the mirror and infinity
(ii) What is the meaning of magnification produced by a lens? An object of length 5 cm is at a distance of 15 cm from a convex lens. Focal length of the lens is 10 cm. What will be the size of the image?
(i) Clarify the meaning of power of accommodation of eye lens of human eye. Where is the image formed by the eye lens?
(ii) Show ray diagram for the refraction of a light ray through a prism and point out the emergent angle and angle of deviation.
(i) State Ohm's law. What will be the value of current and potential difference at the ends of each resistance in the given circuit?
(ii) What do you understand by the heating effect of electric current? In a heater of resistance \(10 \, \Omega\), a current of \(15 \, A\) is flowing for 30 minutes. What will be the amount of heat produced in the heater?
(i) Mention any two properties of magnetic field lines.
(ii) Mention two factors which affect the magnetic field produced by a straight current carrying conductor.
(iii) State the law to find the direction of magnetic field produced due to straight current carrying wire.
(i) Draw magnetic lines of force due to a current carrying solenoid.
(ii) Why fuse is used in domestic electrical circuits?
(iii) A refrigerator of 200 W is operated for 10 hours per day. Find out the cost of energy to operate it for 30 days at the rate of ₹6 per kWh.
i) Write balanced equations for the following reactions:
(a) Aluminum + Copper chloride → Aluminum chloride + Copper:
(b) Magnesium + Hydrochloric acid → Magnesium chloride + Hydrogen:
ii) Write IUPAC names for the following compounds:
(i) Explain Corrosion. Write its two examples.
(ii) Write chemical reaction for manufacture of bleaching powder and its two applications.
(i) What are Exothermic and Endothermic reactions? Explain with example.
(ii) What do you understand by Electrolytic refining? Explain with diagram.
Write a short note on the following:
(i) Importance of pH in daily life
(ii) Micelle
(iii) Metals and Non-metals
What are the trophic levels? Give an example of a food chain and state the different trophic levels in it.
Write a note on the following:
(i) Spore formation in Rhizopus
(ii) Seed germination
Describe the digestive system of human with diagram.
Describe co-ordination in plants with examples.
Write a note on the following:
(i) Gregor Johann Mendel
(ii) Reflex arc
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