Q. What is the correct order of occurrence (% by weight) in air of Ne, Ar and Kr?
A) Ne>Ar>Kr
B) Ar>Ne>Kr
C) Ar>Kr>Ne
D) Ne>Kr>Ar
Explanation
(b)
The correct order of occurrence in air is
Ar>Ne>Kr
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.