Which one of the following forms a basic oxid | vedclass

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(B) The basic character of an oxide increases with an increase in the metallic character of the element. As we move down the group,the metallic charac

Vedclass · Accepted Answer

$Tl$

Vedclass · Answer

(B) The basic character of an oxide increases with an increase in the metallic character of the element. As we move down the group,the metallic character increases. Among the given elements ($B$,$Al$,$Ga$,$Tl$),$Tl$ $(Thallium)$ is at the bottom of the group and thus possesses the highest metallic character. Therefore,$Tl$ forms a basic oxide. $B$ $(Boron)$ forms an acidic oxide,while $Al$ $(Aluminium)$ and $Ga$ $(Gallium)$ form amphoteric oxides.

Which one of the following forms a basic oxide?

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