1. Tardigrade
  2. Question
  3. Chemistry
  4. For two ionic solids CaO and KI, identify the wrong statement amongst the following :

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

The Solid State

Solution:

$CaO$ 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 $KI$.