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For two ionic solids, CaO and KI, which of the following statement is false?

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Lattice enthalpy of CaO is much higher than that of KI.

CaO has high melting point.

KI has low melting point.

KI is soluble in benzene.

answer is D.

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Detailed Solution

Due to lower lattice enthalpy of KI as compared to CaO, the melting point of KI is lower than that of CaO. KI is ionic, so insoluble in benzene.

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