Question

1, What are amphoteric oxides. Give two example of amphoteric oxides.

2, Differentiatr between metal and non-metal on the basis of their chemical properties.



pleas help me​

Answer 1

metallic oxide which shows the properties of acids as well as bases are called amphoteric oxides .

aluminium oxide , zinc oxide , etc

Answer 2

1.Amphoteric oxides are those which react with both acids and bases to give salt and water/ example: Zno (Zinc oxide), lead.

Zno + Hcl ( ACID) → ZnCl2 + H20

Zno + NaOH (BASE)—--> Na2ZnO2 + H2O.

2.◆Chemical properties of metals:

•Metals are Easily corrodible.

•Metals have 1,2or 3 electrons in the valence shell. So Can lose electrons easily.

•Metals Form basic oxides.

•Metals are electropositive in nature.

•Metals Acts as very good reducing agents.

◆Chemical properties of non-metals

•They are not easily corrodible:

•Non metals have more than 4 electrons in their valence shell. So they can gain electrons easily.

•Non metals Form acidic oxides.

•Non metals are electronegative in nature.

•Non metals act as Great oxidizing agent.

Hope this will help you ^_^