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The S-Block Elements

Question
CBSEENCH11007179
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Explain why can alkali and alkaline earth metals not be obtained by chemical reduction methods?

Solution

In the process of chemical reduction, oxides of metals are reduced using a stronger reducing agent. alkali and alkaline earth metals are themselves strong reducing agent and hence cannot be extracted by reduction of their oxides and alkaline earth metals.
alkali metals being highly electron positive cannot be displaced from the aqueous solution of their salts by other metals.

Some More Questions From The s-Block Elements Chapter

Which is the most reactive alkali metal and why?

Why alkali metals do not form M2+ ions?

Name the radio active element in group 1. How does it resemble with the remaining elements of the group?

Why alkali metals are normally kept in kerosene oil?

Why lithium cannot be stored in kerosene?

Why does lithium form complexes?

Why are alkali metal ions diamagnetic and colourless?

Why are alkali metals the most electropositive in nature?

Explain why is sodium less reactive than potassium.

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