(i) both O2 and Xe has the same size.
(ii) both O2 and Xe has the same electron gain enthalpy.
(iii) both O2 and Xe has almost same ionisation enthalpy.
(iv) both Xe and O2 are gases
Correct Answer: (iii) both O2 and Xe has almost same ionisation enthalpy
Explanation: In the preparation of compounds of Xe, Bartlett had taken O2+Pt F6– as a base compound. This is because both O2 and Xe has almost same ionisation enthalpy.