Question

Bi2O3 is most basic in given compounds.reason?

Answer 1

Explanation:

Bi

2

O

3

is the most basic oxide.

More the oxidation state of the central metal atom, more is its acidity. Hence, SeO

2

(O.S of Se =+4 ) is acidic. Further, for a given oxidation state, the basic character of the oxides increases with increasing size of the central atom.

Thus, Al

2

O

3

and Sb

2

O

3

are amphoteric and Bi

2

O

3

is basic.

Answer 2

Explanation:

The acidic character of the oxides decreases on going down a group. This happens because the metallic character increases on moving down the group. So, N is a non-metal while Bi is a metal and non-metals form acidic oxides while metals form basic oxides. ... This increases the chance for the formation of a basic compound.

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