Which of the following compounds has the high | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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

Vedclass · Accepted Answer

$BeF_2$

Vedclass · Answer

(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?

Similar Questions

Write Lewis symbols for the following atoms and ions:
$S$ and $S^{2-}$; $Al$ and $Al^{3+}$; $H$ and $H^{-}$

Which of the following matches is not incorrect?

Which of the following is a characteristic property of electrovalent compounds?

The melting point of $RbBr$ is $682\,^{\circ}C$ while that of $NaF$ is $988\,^{\circ}C$. The principal reason for this fact is

The compound in which the cation is isoelectronic with the anion is

Vedclass Test Series

Exam Paper Generator

Online Exam Module