Question

Example of an amphoteric oxide is: Na2O K2O Al2O3 MgO

Answer 1

Explanation:

An oxide is that chemical compound which has a chemical formula containing at least one oxygen atom and one other element. Oxide is a dianion of oxygen. Oxides can be called as binary compounds formed by the reaction of oxygen with other elements. Oxides are classified as acidic, basic, neutral and amphoteric based on their characteristics.

Na2O, MgO, Al2O3, CuO is the decreasing order of basic nature.

Answer 2

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a) Those metal oxides which show basic as well as acidic behavior are known as amphoteric oxides .

Example : Aluminum oxide and Zinc oxide .

b) Acidic oxide - CO2 , CO , SO2 and N2O : Basic oxide - Na2O , MgO ; Neutral oxide - H2O .

c) ZnO , Al2O3

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