NEET Chemistry The s-Block Elements Questions Solved

Alkaline earth metals form hydrated crystalline solids such as MgCl2.6H2O, CaCl2.6H2O. This is due to-

(A) Smaller ionic size

(B) Increased charge on ions

(C) Higher hydration enthalpies

(D) High oxidation potential

(C). The hydration energy of the ions of alkaline earth metals (M2+) is nearly 4 or 5 times greater than that of alkali metals because of their small size and increased charge.

Difficulty Level:

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