Short Answer TypePotassium is more reactive than calcium. Explain.
Reactivity of an element depends on upon the ionisation enthalpy. Smaller the ionisation enthalpy, greater is the reactivity. As potassium has smaller ionisation enthalpy than calcium. Thus, potassium is more reactive than calcium.
Alkaline earth metals have less electropositive character than the corresponding alkali metals. Why?
Why solubility of alkaline earth metal compounds are comparatively less than the corresponding alkali metal compounds in water?
Arrange the following in the increasing order of the property indicated:
KCl, MgCl2, CaCl2, BeCl2 - Ionic character.
Arrange the following in the increasing order of solubility in water: MgCl2, CaCl2, SrCl2, BaCl2.
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