Top 100 Science Quiz Question 2023 | Science GK Quiz 2023

Top 1000 GK Question in English 2023 For All Exam

Top 100 General Science Quiz 2023 in English

1. The wave used in radar system is an example of which type of wave ?

• Infrared wave
• Infrasonic wave
• Micro wave
• Electromagnetic wave

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2. Which of the following elements could not find a Fixed place in Mendeleev’s periodic table ?

• hydrogen
• Sulfur
• Nitrogen
• Oxygen

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3. Which of the following Element is not easily oxidised at high temperature?

• Alloy
• Semiconductor
• Bad conductor
• Food conductor

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4. Which of the following is not a simple permanent tissue?

• Phloem
• Xylem
• Collenchyma
• Cambium

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5. Which one of the following groups is not included in the five kingdom classification propounded by Whittaker ?

• Fungi
• Protista
• Protozoa
• Animalia

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6. Which of the following is not essential for photosynthesis?

• Chlorophyll
• Carbon dioxide
• Sunlight
• Oxygen

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7. What is the melting point of Tungsten ?

• 3308°C
• 3380°C
• 3083°C
• 3830°C

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8. Which of the following gas is evolved when a metal reacts with water ?

• Oxygen
• Hydrogen
• Chlorine
• Nitrogen

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9. How is mechanical energy defined ?

• Rate of doing work
• Energy absorbed by a moving object
• Sum of kinetic energy and potential energy of an object
• Energy released during mechanical work

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10. What is the life span of Red Blood Cells ?

• 80 – 100 days
• 100 – 120 days
• 120 – 140 days
• 100 – 150 days

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11. Which Hormone is called the life saving hormone of Human ?

• Estrogen
• Prolactin
• Adrenal
• Insulin

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12. Newlands principle of octaves is applicable to which of the following elements ?

• Calcium
• Sulfur
• Chlorine
• Potassium

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13. What is the product of force and displacement Called ?

• Load
• Acceleration
• Work
• Momentum

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14.  Between which two elements is silicon placed in group 14 of the modern periodic table ?

• Be and N
• Al and P
• Be and C
• Na and K

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15. What is air Pressure Called ?

• Solidification
• Atmospheric pressure
• Evaporation
• Temperature

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16. Which reacts strongly with water to form Scalded Lime ?

• Calcium oxide
• Calcium
• Calcium chloride
• Calcium hydroxide

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17. What is the sum of the number of protons and neutrons in the nucleus called?

• Atomic number
• Mass number
• Connectivity
• Equivalence

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18. Which is the most explosive gas in coal mine ?

• Hydrogen
• Carbon monoxide
• Air
• Methane

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19. Which of the elements of the halogen group is the most reactive?

• Fluorine
• Chlorine
• Bromine
• Iodine

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20. In which of the following conditions water will not evaporate?

• when the temperature is 0°C
• When the humidity is 0%
• When the temperature is 100°C
• When the humidity is 100%

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21. Which of the following Element is the best Conductor of Electricity ?

• Copper
• Iron
• Silver
• aluminum

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22. What is a pyrometer used to Measure ?

1. Atmospheric pressure
2. Humidity
3. High Temperature
4. Density

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23. Why does a stone placed at the bottom of a pond appear to be placed at a higher point than its actual position ?

1. due to reflection of light
2. due to refraction of light
3. due to diffraction of light
4. due to scattering of light

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24. By which instrument is atmospheric humidity measured?

• Hygrometer
• Hydrometer
• Manometer
• Odometer

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25. On what principle does the hydrogen bomb work ? 

• Nuclear fission
• Nuclear fusion
• Radioactivity
• All of the above

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26. Which lens is used in spectacles used for the treatment of a person suffering from myopia ?

• Concave lens
• Convex lens
• Bifocal lens
• Flat lens

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27. What Reason to Rain drops spherical ?

1. due to the density of the liquid
2. due to surface tension
3. due to atmospheric pressure
4. due to gravity

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28. What element is the filament of an electric bulb made of ?

1. Copper
2. Iron
3. Glass
4. Tungsten

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29. Sound cannot pass through which of the following medium ?

• through water
• through the air
• through steel
• through the vacuum

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30. Which instrument is used to measure the intensity of an earthquake

1. Reactor scale
2. Kelvin scale
3. Decibel
4. Pascal

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31. A stick immersed in water appears bent because of What ?

1. Reflection of light
2. diffraction of light
3. Refraction of light
4. Scattering of light

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32. Which of the following is the best conductor of Heat ?

• Water
• Mercury
• Wood
• Iron

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33. What is the SI unit of electric Current ?

• Ampere
• Ohm
• Voltage
• Joule

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34. Which mirror is used by a dentist to examine the teeth of a patient ?

• Convex mirror
• Concave mirror
• Convex Lens
• Concave Lens

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35. What is commonly used in a Magnifying Glass ?

1. Convex mirror
2. Convex lens
3. Concave mirror
4. Concave lens

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36. What is the speed of sound in air ?

• 232 m/s
• 332 m/s
• 320 m/s
• 432 m/s

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37. Which type of mirror is used for shaving?

• Concave mirror
• Convex mirror
• Plane mirror
• All of the above

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38. What is the smallest unit of length?

1. Micron
2. Nanometer
3. Fermimeter
4. Centimeter

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39. Which type of mirror is used in the front islands of vehicles to see the Rear view ?

1. Convex mirror
2. Concave mirror
3. Plane mirror
4. Parabolic mirror

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40. If the length of a resistive wire is increased, what will be the effect on its Resistance ?

1. Resistance will increase
2. Resistance will decrease
3. Will remain stable
4. Not any Effect

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41. At what temperature is the density of water the highest?

• – 4 degree Celsius
• 0 degree Celsius
• 4 degree Celsius
• – 1 degree Celsius

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42. By which instrument is the intensity of an earthquake measured ?

1. Seismograph
2. Barometer
3. Anemometer
4. Lactometer

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43. In which direction does a freely suspended magnet always point ?

• in the north-east direction
• in the south-west direction
• north-south direction
• In the north-west direction

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44. Which of the following materials is most suitable for making the core of a transformer ?

1. Nickel
2. Soft iron
3. Silver
4. Aluminum

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45. In which of the following is the electrical resistance of the conductor independent ?

• At temperature
• on pressure
• on area of ​​cross section
• at length

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46. The temperature whose reading remains the same on both the Fahrenheit and Celsius Scales ?

• 40° C
• -40° C
• 37° C
• -140°C

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47. Which color of light shows maximum deviation when passing through a Prism ?

1. Red
2. Green
3. Blue
4. Purple

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48. At present, most of the yellow lamps are used for street lighting, which gas is used in these lamps ?

1. Sodium
2. Organ
3. Neon
4. Nitrogen

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49. If the temperature of a medium is increased, then what will be the effect on the velocity of light in that Medium ?

• Increase
• Decrease
• remain unchanged
• None of these

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50. On what principle does optical fiber Work ?

• Scattering of light
• Dispersion of light
• Total internal reflection
• All of the above

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