A) In the Dewars method for the separation of noble gases, activated coconut charcoal is used.
B) Krypton is used in miners cap lamps.
C) The electron affinity values of noble gases are nearly equal to zero.
D) Xenon gives different colours when mixed with mercury vapours.
Correct Answer: D
Solution :
Xenon produces flash (photographic) when mixed with mercury vapours inspite of different colours.
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