Multiple choice general knowledge science & technology

Which of these noble gases is used to detect heart defects and fill electronic devices

  1. Neon

  2. Radon

  3. Argon

  4. Krypton
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D Correct answer
Explanation

Krypton is used in specialized medical imaging to detect heart defects and also in certain electronic devices like flash lamps and lasers. Radon is radioactive and hazardous. Neon is used in signs and lighting. Argon is used in welding and as an inert atmosphere.

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