Which of the following has the highest meltin | vedclass

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(D) The melting point of ionic compounds depends on the lattice energy and the ionic character of the bond. According to Fajan's rule,as the size of t

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$BaCl_2$

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(D) The melting point of ionic compounds depends on the lattice energy and the ionic character of the bond. According to Fajan's rule,as the size of the cation increases,the polarizing power decreases,leading to an increase in the ionic character of the metal-chloride bond. Among the given alkaline earth metal chlorides $(BeCl_2, MgCl_2, CaCl_2, BaCl_2)$,$Ba^{2+}$ has the largest ionic radius. Therefore,$BaCl_2$ possesses the highest ionic character and the strongest electrostatic forces of attraction,resulting in the highest melting point.

Which of the following has the highest melting point?

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