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Property of the alkaline earth metals th...

Property of the alkaline earth metals that increases with their atomic number is

A

Solubility of their hydroxides in water

B

Solubility of their sulphates in water

C

Ionization energy

D

Electronegativity

Text Solution

Verified by Experts

The correct Answer is:
1
The solubility if an ionic compound depends on two factors:
(a)lattice energy ,and
(b)hydration energy
In case of alkaline metal hydroxides ,the lattice energy decreases as we move down the group.This decreases in more than the decrease in the hydration energy down the group
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Alkali and alkaline earth metals have low ionisation enthalpies and hence exhibit characteristic flame colouration. They have high negative electrode potentials and hence are strong reducing agents. They dissolve in liquid ammonia to give a solution which conducts electricity and act as strong reducing agent. being stronger reducing agent than hydrogen, they are usually prepared by the electrolysis of their fused chlorides. Their oxides are basic and the basic strength increases down the group. The solubility of carbonates and sulphates of alkali and alkaline earth metals show opposite trends. only the carbonates of Li and alkaline earth metals decompose on heating. The bicarbonates of both alkali and alkaline earth metals on heating give carbonates. Property of alkaline earth metals that increases with their atomic number is

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Properties of the alkaline earth metals that increase from Be to Ba include which of the following? (P) Atomic radius (Q) Ionization energy (R) Nuclear charge

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