. Amphoteric oxide is


A: A12O3

B: SiO2

C: P4O10

D:C1O7

 

Best Answer

Solution: Option A is the correct answer.

Explanation: The term amphoteric oxide refers to a metal oxide that can react with both acids and bases. Amphoteric oxides are formed by a variety of metals, including lead, beryllium, aluminum, and zinc, and are extremely reactive to acids and bases.

Aluminum oxide (A12O3) is the only one of the listed oxides that has the ability to react with both acid and base.

The following is the reaction of aluminum oxide with hydrochloric acid.

A12O+ 6HCI → 2A1CI3 + 3H2O

The following is the reaction of aluminum oxide with sodium hydroxide.

A12O+ 2NaOH → 2NaAIO2 + H2O

As a result, of the available alternatives, aluminum oxide only reacts with acid and base.

Hence, option A is the correct answer.

 

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