All the alkali and alkaline earth metals show similar properties EXCEPT?
Correct answer: D. The bicarbonates of all the elements of the two families are insoluble in water
- A. The elements of both the families are strongly electropositive
- B. All the elements of the two families are highly reactive
- C. None of the elements of the two families occur in the' free state in nature.
- D. The bicarbonates of all the elements of the two families are insoluble in water
Explanation
The correct answer is Option D: The bicarbonates of all the elements of the two families are insoluble in water. The alkali metals' bicarbonates are soluble in water, while the alkaline earth metals' bicarbonates are insoluble. This is due to the differences in ionization energy between the two groups. The other options are incorrect as they do not represent exceptions in the properties of alkali and alkaline earth metals.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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