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Compare the stability of Ni^(4+)and Pt^(...

Compare the stability of `Ni^(4+)and Pt^(4+)` from their ionisation enthalpy values.
`{:(IE,Ni,Pt),(I,737,864),(II,1753,1791),(III,3395,2800),(IV,5297,4150):}`

Text Solution

Verified by Experts

(i) `Ni^(4+)I.E.=737+1753+3395+5297=11182"kJ mol"^(-1)`
(ii) `Pt^(4+)I.E. =864+1791+2800+4150=9605 "kJ mol"^(-1)`
`Pt^(4+)` compounds are stable than `Ni^(4+)` compounds because the energy needed to remove 4 electrons in Pt is less than that of Ni.
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