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  4. On moving down the group, acidic nature of oxides of group 14

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Q. On moving down the group, acidic nature of oxides of group 14

The p-Block Elements

Solution:

The acidic nature decreases with increase of atomic number of the oxides. $CO _{2}$ and $SiO _{2}$ are acidic and $GeO _{2}$, $SnO _{2}$ & $PbO _{2}$ are amphoteric. Basic character of both mono and dioxide increases down the group.