Q24 of 72 Page 90

In the preparation of compounds of Xe, Bartlett had taken O2+Pt F6– as a base compound. This is because

Neil Bartlett noticed that PtF6 is a powerful oxidizing agent which combines with O2 to form red ionic compound.


O2 + PtF6[PtF6]-


As the first ionization enthalpy of Xe gas is 1170KJ/MOL and that of oxygen is 1175KJ/MOL


Both have almost same value of ionization enthalpy. Diameter of O2 and Xe are almost similar (4A’). Hence the correct option is (iii).

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