Which One of the Following is an Amphoteric Oxide?

By K Balaji|Updated : October 6th, 2022
  1. Al2O3
  2. CO2
  3. SO2
  4. CuO

Al2O3 is an amphoteric oxide. These are the oxides that can combine with bases and acids to produce salt and water.

Amphoteric oxides are those that have the ability to function as both an acid and a base.

  • Acidic oxides are oxides that have the ability to function as an acid.
  • Basic oxides are oxides that have a basic character.
  • Neutral oxides are those oxides that are neither acids nor bases.

Amphoteric oxides

These have both basic and acidic characteristics.

Al2 O3 , SiO2 is an example of Amphoteric oxide.

Al2 O3 + 2NaOH (Base) → 2NaAlO2 + H2 O

Al2 O3 + 6HCl (acid) → 2AlCl3 + 3H2 O

CO2:

It is a nonmetallic oxide that has an acidic chemistry.

An oxide is referred to as acidic if it reacts with water to form an acid.

CO2 carbonic acid is created by interaction with water (H2 CO3).

SO2 :

It is an acidic non-metallic oxide as well.

SO2 +H2 O→H2 SO3 (Sulfurous acid).

CuO:

This oxide is basic.

Cu thus does not produce amphoteric oxide.

Summary:-

Which One of the Following is an Amphoteric Oxide? 1. Al2O3 2. CO2 3. SO2 4. CuO

Al2 O3 is an amphoteric oxide which has both basic and acidic properties resulting in the formation of salt and water

Related Questions:-

Comments

write a comment

CDS & Defence Exams

CDSCAPFAFCATTA ExamACC ExamOther ExamsPracticePreparation

Follow us for latest updates