Question

The gas not absorbed by coconut charcoal is :
(a) He
(b) Ne
(c) Ar
(d) Kr

Answer 1

option ➡️ (a) He

As Helium comes under noble gas group, which means one of property is not being reactive relative to other elements.

hope this helps you ☺️☺️❤️❤️✌️✌️