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      Question

      Electric bulbs are filled with

      :
      A Nitrogen Correct Answer Incorrect Answer
      B Carbon dioxide Correct Answer Incorrect Answer
      C Argon Correct Answer Incorrect Answer
      D Oxygen Correct Answer Incorrect Answer

      Solution

      Filling a bulb with an inert gas such as argon or nitrogen slows down the evaporation of the tungsten filament compared to operating it in a vacuum.

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