Class 10 UP Board Science exam
1. **Which of the following is a non-renewable resource?**
A) Solar energy
B) Wind energy
C) Natural gas
D) Biomass
**Answer:** C) Natural gas
### 2. **The SI unit of force is:**
A) Joule
B) Newton
C) Watt
D) Pascal
**Answer:** B) Newton
---
### 3. **What is the formula for the area of a circle?**
A) \( \pi r^2 \)
B) \( 2 \pi r \)
C) \( r^2 \)
D) \( \pi d^2 \)
**Answer:** A) \( \pi r^2 \)
---
### 4. **Which of the following is a property of acids?**
A) They turn red litmus paper blue.
B) They have a bitter taste.
C) They release hydrogen ions in water.
D) They feel slippery.
**Answer:** C) They release hydrogen ions in water.
---
### 5. **The atomic number of oxygen is 8. How many electrons are there in its valence shell?**
A) 2
B) 4
C) 6
D) 8
**Answer:** C) 6
---
### 6. **Which of the following is NOT a form of energy?**
A) Heat
B) Light
C) Force
D) Sound
**Answer:** C) Force
---
### 7. **Which of the following is an example of a physical change?**
A) Rusting of iron
B) Burning of wood
C) Melting of ice
D) Digestion of food
**Answer:** C) Melting of ice
---
### 8. **In an electric circuit, the function of a fuse is to:**
A) Increase current
B) Decrease current
C) Break the circuit in case of overload
D) Measure voltage
**Answer:** C) Break the circuit in case of overload
---
### 9. **Which of the following gases is released during photosynthesis?**
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
**Answer:** A) Oxygen
---
### 10. **The heart of a human being has how many chambers?**
A) 2
B) 3
C) 4
D) 5
**Answer:** C) 4
---
### 11. **What is the primary function of the xylem in plants?**
A) Transport of food
B) Transport of water and minerals
C) Photosynthesis
D) Reproduction
**Answer:** B) Transport of water and minerals
---
### 12. **Which of the following is an example of an exothermic reaction?**
A) Photosynthesis
B) Dissolving sugar in water
C) Burning of wood
D) Melting of wax
**Answer:** C) Burning of wood
---
### 13. **The chemical formula of water is:**
A) H2O2
B) H2O
C) CO2
D) O2
**Answer:** B) H2O
---
### 14. **Which of the following is the most common method for separating different pigments in leaves?**
A) Filtration
B) Distillation
C) Chromatography
D) Evaporation
**Answer:** C) Chromatography
---
### 15. **What is the SI unit of power?**
A) Joule
B) Watt
C) Ampere
D) Volt
**Answer:** B) Watt
Comments
Post a Comment