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General Science Quiz 1

Ten questions on physics, chemistry and biology basics.

10 min · 10 questions · +1 per correct · −0.25 per wrong · Medium

  • Read each question carefully.
  • Choose one option.
  • Each correct answer gives +1; each wrong answer gives -0.25.
  • Submit to see your score and explanations.
Q1. The chemical symbol of sodium is:
Q2. Which gas is commonly used in fire extinguishers?
Q3. Which vitamin is needed for blood clotting?
Q4. The SI unit of energy is:
Q5. Which planet is known as the Red Planet?
Q6. The powerhouse of the cell is:
Q7. The pH of pure water at room temperature is:
Q8. Which blood group is called the universal donor?
Q9. The speed of light in vacuum is approximately:
Q10. The hardest natural substance is:

Ten questions on physics, chemistry and biology basics. Each question has one correct answer and a short explanation after you submit.