What is amphoteric acid and example?

What is amphoteric acid and example?

Examples of amphoteric substances include water, amino acids, proteins, and many metal oxides and hydroxides. For example, sulfuric acid (H2SO4) acts as an acid in water, but it acts as a base or is amphoteric in superacids. In general, acids able to donate multiple hydrogen ions are amphoteric.

What is an Amphiprotic acid?

In chemistry and physical sciences, a substance is described as amphiprotic if it can both donate or accept a proton, thus acting either like an acid or a base (according to Brønsted-Lowry theory of acids and bases: acids are proton donors and bases are proton acceptors.

What are amphoteric acids two examples?

Answer: Oxides of metals which have both acidic as well as basic behaviour are known as amphoteric oxides. Such metallic oxides react with acids as well as base to produce salt and water. Examples of Amphoteric oxides are aluminium oxide and zinc oxide.

Which is the most amphoteric acid?

Al2O3 is most amphoteric in nature. It reacts with adds as well as alkalies.

Is glycine an amphoteric?

In aqueous solution, glycine itself is amphoteric: at low pH the molecule can be protonated with a pKa of about 2.4 and at high pH it loses a proton with a pKa of about 9.6 (precise values of pKa depend on temperature and ionic strength).

What species is amphoteric?

A species that has the potential to act both as an acid and as a base according to Brønsted-Lowry Theory is said to be amphoteric. The water molecule has hydrogen atoms and, therefore, could act as an acid in a reaction.

What is an amphoteric solvent?

Amphoteric protic solvents are those which can both accept and receive hydrogen ions. From the viewpoint of the Brønsted-Lowry concept the acid-base chemistry in these solvents is governed by autoionization equilibria analogous to water autoionization.

Is an oxide which is amphoteric?

Amphoteric oxides are classified as metal oxides that react with both acids as well as bases to create salts and water. Amphoteric oxides, among many others, include lead oxide and zinc oxide. Amphiprotic molecules, which can either donate or accept a proton (H+), are one sort of amphoteric species.

What are the amphoteric oxides give an example?

Amphoteric oxides react with both acids and alkalis to form salt and water. Examples of amphoteric oxides are zinc oxide and aluminium oxide.

Which of the following is amphoteric?

Aluminum oxide, beryllium oxide, tin oxide, zinc oxide all are amphoteric.