For two ionic solids CaO and KI, identify the wrong statement amongst the following :

Question

For two ionic solids CaO and KI, identify the wrong statement amongst the following : (A) The lattice energy of CaO is much large than that of KI (B) KI is more soluble in water (C) KI has higher melting point (D) CaO has higher melting point

Tardigrade Admin · Accepted Answer

CaO has higher lattice energy because of higher charge on Ca 2+ and O 2 - which results in higher attraction. KI is more soluble in water because of low lattice energy and higher hydration energy. Clearly (c) is wrong because CaO has higher melting point as compared to KI.

Q. For two ionic solids CaO and KI, identify the wrong statement amongst the following :

The lattice energy of CaO is much large than that of KI

KI is more soluble in water

KI has higher melting point

CaO has higher melting point

$C a O$ has higher lattice energy because of higher charge on $C a^{2 +}$ and $O^{2}$ - which results in higher attraction. $K I$ is more soluble in water because of low lattice energy and higher hydration energy. Clearly (c) is wrong because $C a O$ has higher melting point as compared to $K I$ .

Q. For two ionic solids CaO and KI, identify the wrong statement amongst the following :

The lattice energy of CaO is much large than that of KI

KI is more soluble in water

KI has higher melting point

CaO has higher melting point

CaO has higher lattice energy because of higher charge on Ca2+ and O2 - which results in higher attraction. KI is more soluble in water because of low lattice energy and higher hydration energy. Clearly (c) is wrong because CaO has higher melting point as compared to KI.

$C a O$ has higher lattice energy because of higher charge on $C a^{2 +}$ and $O^{2}$ - which results in higher attraction. $K I$ is more soluble in water because of low lattice energy and higher hydration energy. Clearly (c) is wrong because $C a O$ has higher melting point as compared to $K I$ .