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(C) Analysis of the given orders:$(a)$ Lattice Energy is directly proportional to the product of charges and inversely proportional to the interionic

Vedclass · Accepted Answer

only $c$

Vedclass · Answer

(C) Analysis of the given orders:$(a)$ Lattice Energy is directly proportional to the product of charges and inversely proportional to the interionic distance. For $A_2B$ ($A^+$,$B^{2-}$),$AB$ ($A^{2+}$,$B^{2-}$),and $A_2B_3$ ($A^{3+}$,$B^{2-}$),the charge product increases as $A_2B $(b)$ Thermal stability of alkali metal carbonates increases down the group due to the decrease in polarizing power of the cation. The order $Na_2CO_3 $(c)$ For alkaline earth metal fluorides,the solubility order is $BeF_2 > MgF_2 > CaF_2 > SrF_2 > BaF_2$. The given order $MgF_2 $(d)$ Solubility and thermal stability of alkali metal hydroxides increase down the group. The order $LiOH Therefore,only $(c)$ is incorrect.

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