(C) Beryllium $(Be)$ and aluminium $(Al)$ show a diagonal relationship due to similar ionic potential. However,they differ in their maximum covalency.

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Exhibiting maximum covalency in compounds

(C) Beryllium $(Be)$ and aluminium $(Al)$ show a diagonal relationship due to similar ionic potential. However,they differ in their maximum covalency. Beryllium has a maximum covalency of $4$ because it has only $2s$ and $2p$ orbitals available for bonding. Aluminium has a maximum covalency of $6$ because it has vacant $3d$ orbitals available for bonding.

Class 11 Chemistry s-Block Elements Alkaline earth metals

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Beryllium and aluminium exhibit many properties which are similar. But,the two elements differ in

AIEEE 2004 All AIEEE

A
Forming covalent halides
B
Forming polymeric hydrides
C
Exhibiting maximum covalency in compounds
D
Exhibiting amphoteric nature in their oxides

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Among the following,which is water insoluble?

MediumAP EAMCET 2007

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$SrSO_4$ has a greater solubility in water than

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Chemical $A$ is used for water softening to remove temporary hardness. $A$ reacts with $Na_2CO_3$ to generate caustic soda. When $CO_2$ is bubbled through $A$,it turns cloudy. What is the chemical formula of $A$?

DifficultAIIMS 1999

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Which of the alkaline earth metal halides given below is essentially covalent in nature?

DifficultJEE MAIN 2015

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The carbonates of alkaline earth metals decompose on heating to give:
$I$. $CO_2$
$II$. Metal oxide
$III$. $H_2 O$
$IV$. $CO$

EasyTS EAMCET 2020

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Beryllium and aluminium exhibit many properties which are similar. But,the two elements differ in

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Among the following,which is water insoluble?

$SrSO_4$ has a greater solubility in water than

Chemical $A$ is used for water softening to remove temporary hardness. $A$ reacts with $Na_2CO_3$ to generate caustic soda. When $CO_2$ is bubbled through $A$,it turns cloudy. What is the chemical formula of $A$?

Which of the alkaline earth metal halides given below is essentially covalent in nature?

The carbonates of alkaline earth metals decompose on heating to give:$I$. $CO_2$$II$. Metal oxide$III$. $H_2 O$$IV$. $CO$

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The carbonates of alkaline earth metals decompose on heating to give:
$I$. $CO_2$
$II$. Metal oxide
$III$. $H_2 O$
$IV$. $CO$