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      Question

      Which gas is primarily used in the filling of

      incandescent light bulbs?
      A Helium Correct Answer Incorrect Answer
      B Argon Correct Answer Incorrect Answer
      C Radon Correct Answer Incorrect Answer
      D Oganesson Correct Answer Incorrect Answer

      Solution

      Argon is often used in incandescent light bulbs to extend the life of the tungsten filaments, as it prevents rapid deterioration from occurring.

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