Assertion :The crystalline salts of alkaline earth metals contain more water of crystallization than the corresponding alkali metal salts. Reason: The size of alkaline earth metal ions is lower than the size of alkali metal ions. The lower the size of the cation, the higher is the hydration energy. So the salts of alkaline earth metals have more water molecules of crystallization than those of alkali metals.
Assertion :The crystalline salts of alkaline earth metals contain more water of crystallization than the corresponding alkali metal salts. Reason: The size of alkaline earth metal ions is lower than the size of alkali metal ions. The lower the size of the cation, the higher is the hydration energy. So the salts of alkaline earth metals have more water molecules of crystallization than those of alkali metals.
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
The crystalline salts of alkaline earth metals contain more water of crystallization than the corresponding alkali metal salts,because the size of alkaline earth metal ions is lower than the size of alkali metal ions. The lower the size of the cation, the higher is the hydration energy. So the salts of alkaline earth metals have more water molecules of crystallization than those of alkali metals. So both the statements are correct and reason is the correct explanation of assertion. Hence option A is correct.
The crystalline salts of alkaline earth metals contain more water of crystallization than the corresponding alkali metal salts,because the size of alkaline earth metal ions is lower than the size of alkali metal ions. The lower the size of the cation, the higher is the hydration energy. So the salts of alkaline earth metals have more water molecules of crystallization than those of alkali metals. So both the statements are correct and reason is the correct explanation of assertion. Hence option A is correct.
