Which of the following oxides is amphoteric?

Dan.Frosh

1 year ago

Explanation:
Amphoteric oxides are oxides that can react with both acids and bases to form salts and water.

Na₂O (Sodium oxide) → Basic oxide
Fe₂O₃ (Iron(III) oxide) → Weakly basic but not truly amphoteric
Al₂O₃ (Aluminum oxide) → Amphoteric, as it reacts with both acids and bases
CaO (Calcium oxide) → Strongly basic oxide
CuO (Copper(II) oxide) → Basic oxide
Since Al₂O₃ can react with both acids (forming aluminum salts) and bases (forming aluminates), it is classified as amphoteric.

Femcy991

4 years ago

Al2O3 is an amphoteric oxide because it reacts with either acid or base.
Reaction with acid:
Al2O3 + 6HCl —> AlCl3 + 3H2O
Reaction with base/alkali:
Al2O3 + 2NaOH + 3H2O —> 2NaAl(OH)4

Viczelee

1 year ago

amphoteric means having both the properties of an acid or a base, that is where Al2O3, it will act as an acid when reacting with a base and vise versa.

Itz_just.vida

1 year ago

Amphoteric oxides can react with both acids and bases.
Al2​O3 can react with acids to form salts and water and with bases to form salts and water

Tolani109

8 years ago

It is option A not C