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Select the incorrect order :
\( \mathrm{P} \)
(a) \( \mathrm{AlF}_{3}\mathrm{MgO}_{8}\mathrm{MgF}_{2} \) : Lattice energy
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(b) \( \mathrm{Li}\mathrm{Na}\mathrm{Al}\mathrm{Mg} \quad \) : Electron affinity
(c) \( \mathrm{SF}_{6}\mathrm{PF}_{5}\mathrm{SiF}_{4} \quad \) : Lewis acidic character
(d) \( \mathrm{SiCl}_{4}\mathrm{SiBr}_{4}\mathrm{SiI}_{4} \quad \) : Decreasing order of electronegativity of \( \mathrm{Si} \)
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