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NEET levelSingle correct optionDifficulty 1 of 3ph111

Xenon was discovered in 1898 by

  1. ARamsay and Travers
  2. BDorn and Rutherford
  3. CJanssen and Lockyer
  4. DRayleigh and Ramsay

Answer: A

Ramsay and Travers obtained neon, krypton and xenon by fractional distillation of liquid air; xenon is the least volatile fraction and was found in the residue. Rayleigh and Ramsay discovered argon (1894), and Janssen and Lockyer are associated with helium in the solar spectrum. The answer is Ramsay and Travers.
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