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Argon
Krypton
Radon
Xenon
Which one of the following pairs does not have the same dimension
Which one of the following pairs of rays is electromagnetic in nature?
Which one of the following plants has the largest flower?
Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
Which one of the following substance is not a mixture
Which one of the following types of radiation has the smallest wave length
Which one of the following types of waves are used in a night vision apparatus?
Which one of the following vitamins helps in clotting of blood?
Which one of the following was the first mineral acid discovered
Which organ of Human body is affected by Alzheimer disease ?