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The S-Block Elements

Question

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Why anhydrous magnesium chloride is not obtained by simply heating hexahydrate?

Solution

Anhydrous magnesium chloride is not obtained by simply heating hexahydrate because, on heating, partial hydrolysis occurs.

MgCl subscript 2. space 6 straight H subscript 2 straight O space rightwards harpoon over leftwards harpoon space space Mg left parenthesis OH right parenthesis Cl space plus space HCl space plus space 5 straight H subscript 2 straight O

Some More Questions From The s-Block Elements Chapter

The softness of group 1 elements increases down the group with increasing atomic number. Give reason.

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?

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