Which of the following compounds has the high | vedclass

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(C) Lattice enthalpy is directly proportional to the product of the charges of the ions and inversely proportional to the inter-ionic distance (sum of

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$BeF_2$

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(C) Lattice enthalpy is directly proportional to the product of the charges of the ions and inversely proportional to the inter-ionic distance (sum of ionic radii).$Lattice \ Enthalpy \propto \frac{|q_+ q_-|}{r_+ + r_-}$.Comparing the given compounds:$LiCl$: $Li^+$ $(+1)$,$Cl^-$ $(-1)$$NaCl$: $Na^+$ $(+1)$,$Cl^-$ $(-1)$$BeF_2$: $Be^{2+}$ $(+2)$,$F^-$ $(-1)$$CaCl_2$: $Ca^{2+}$ $(+2)$,$Cl^-$ $(-1)$$BeF_2$ has the highest charge product $(|(+2) 	imes (-1)| = 2)$ and the smallest ionic radii sum ($Be^{2+}$ and $F^-$ are smaller than $Ca^{2+}$ and $Cl^-$). Therefore,$BeF_2$ has the highest lattice enthalpy.

Which of the following compounds has the highest lattice enthalpy?

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