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General KnowledgePolice

General Knowledge Quiz in Hindi – सामान्य ज्ञान Set 4

इतिहास, भूगोल, विज्ञान, राजव्यवस्था और विविध विषयों के सामान्य ज्ञान प्रश्न। SSC GD, रेलवे, पुलिस और अन्य भर्ती परीक्षाओं के लिए। कुल 20 प्रश्न · समय 14 मिनट · स्तर: Easy।
📋 20 Questions ⏱ 14 min 🏷 General Knowledge, Police

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Practice Questions & Answers

Try each question and reveal the correct answer when you are ready.

1. What is the chemical symbol for silver?

  1. Al
  2. Au
  3. Ag
  4. Na

2. What is the chemical formula of water?

  1. H2O
  2. O2
  3. CO2
  4. NaCl

3. Which gas is most abundant in Earth's atmosphere?

  1. Carbon dioxide
  2. Nitrogen
  3. Hydrogen
  4. Oxygen

4. Which gas is essential for human respiration?

  1. Oxygen
  2. Helium
  3. Nitrogen
  4. Carbon dioxide

5. Which organ pumps blood throughout the human body?

  1. Lungs
  2. Kidney
  3. Heart
  4. Liver

6. Which is the largest organ of the human body?

  1. Lung
  2. Skin
  3. Heart
  4. Liver

7. Which organ is mainly responsible for filtering blood and producing urine?

  1. Heart
  2. Pancreas
  3. Stomach
  4. Kidney

8. Which vitamin is mainly produced in the skin in sunlight?

  1. Vitamin C
  2. Vitamin D
  3. Vitamin B12
  4. Vitamin A

9. Which blood cells help fight infections?

  1. Red blood cells
  2. White blood cells
  3. Platelets
  4. Plasma

10. Which blood cells carry oxygen?

  1. Platelets
  2. Plasma
  3. Red blood cells
  4. White blood cells

11. Which part of a plant conducts water from roots to leaves?

  1. Phloem
  2. Stomata
  3. Flower
  4. Xylem

12. Which part of a plant transports prepared food?

  1. Root hair
  2. Phloem
  3. Xylem
  4. Stomata

13. What is the process by which green plants make food?

  1. Transpiration
  2. Respiration
  3. Digestion
  4. Photosynthesis

14. Which pigment gives plants their green colour?

  1. Chlorophyll
  2. Hemoglobin
  3. Melanin
  4. Keratin

15. Which instrument measures temperature?

  1. Ammeter
  2. Hygrometer
  3. Thermometer
  4. Barometer

16. Which instrument measures atmospheric pressure?

  1. Voltmeter
  2. Thermometer
  3. Ammeter
  4. Barometer

17. Which instrument measures electric current?

  1. Barometer
  2. Voltmeter
  3. Thermometer
  4. Ammeter

18. Which metal is liquid at room temperature?

  1. Mercury
  2. Aluminium
  3. Iron
  4. Copper

19. Which is the hardest natural substance?

  1. Diamond
  2. Iron
  3. Quartz
  4. Gold

20. Which acid is present in lemon?

  1. Hydrochloric acid
  2. Acetic acid
  3. Citric acid
  4. Sulfuric acid

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