Which of the following inert gases participates in chemical reactions?

The noble gas was first discovered by

Which one of the following is a correct pair with respect to the molecular formula of a xenon compound and the hybridization state of xenon in it?

The density of nitrogen prepared from air is slightly higher than that of nitrogen prepared from chemical compounds. This is due to the presence of which of the following in nitrogen obtained from air?

Every inert gas atom

Which mixture is used for respiration by deep sea divers?