A) Rayleigh
B) Ramsay
C) both (a) and
D) (d) none of these
Correct Answer: C
Solution :
Argon first noble gas to be discovered by Ramsay and Rayleigh. Helium was detected by Janssen and Lockyer independently in the spectrum of sun and Ramsay found it on earth. Neon, krypton and xenon was discovered by Ramsay and Travers during liquefaction of air followed by its fractional distillation. Radon was discovered by Dorn.
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