📊 Chemistry
Q. Which gas is used in balloons?
  • (A) Oxygen
  • (B) Helium
  • (C) Nitrogen
  • (D) Hydrogen
✅ Correct Answer: (B) Helium

Explanation: Helium is a light, non-flammable gas used in balloons to make them float safely.

Explanation by: Sikhar Chaudhary
Helium is a light, non-flammable gas used in balloons to make them float safely.

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