Assertion :Nitrogen doesn't form compound of the type N+2[PtF6] (Ionisation potential of N2 is 1403kJmol−1) Reason: Oxygen and xenon which have ionisation energies, 1180kJmol−1 and 1170kJmol−1, respectively, can be oxidised by PtF6 while nitrogen having comparatively much higher ionisation energy, 1403kJmol−1 cannot be oxidised, so a compound of the type [N2]+[PtF6]− cannot be formed.