Materials- Metals &Non-metals · 2020. 9. 22. · Materials- Metals &Non-metals Oxidation React...
Transcript of Materials- Metals &Non-metals · 2020. 9. 22. · Materials- Metals &Non-metals Oxidation React...
Materials- Metals &Non-metals
Oxidation React with oxygen to form basic oxides
Reaction with Water React with water to liberate hydrogen and form alkali
React with acids to liberate hydrogen and form the respective metal salt
Metals like Aluminium react with alkalis to liberate hydrogen gas and from the respective salt
Some metals displace other metals from their salt solution
(Rust)Iron(Fe) + Oxygen(O2) + Water(H2O) D Fe2O3
Zinc + Hydrochloric acid D Zinc chloride + Hydrogen Or
Zn +2HCl D ZnCl2 + H2
Aluminium +Sodium Hydroxide D Sodium Aluminate + Hydrogen (Al) (NaOH) (NaAlO2) H2
Copper sulphate + Zinc D Zinc Sulphate + Copper
Making utensils and water boilers
Making wires and sheets
Uses of Metals Uses of Non-Metals
Used as antiseptic on wounds.
Making automobiles, machinery, industrial gadgets
Oxygen is very essential for our life,as it is required for respiration
Used in fertilizers,which aide better plant growth
CuSO4 + Zn D ZnSO4 + Cu
2Na + 2H2O D 2NaOH + H2
Sodium + Water D Sodium hydroxide(Alkali) + Hydrogen Gas
Rusting of iron
Sodium hydroxide(Alkali) + Hydrogen Gas
Reaction with Acids
Reaction with Bases
Displacement Reaction
Chemical Properties of Metals
Physical Properties
Ductile
Good conductorsof Heat and
Electricity
Hard solids having lustre
SonorousHigh melting
and boilingpoints
Malleable
Solids, Liquids or gases
Non-Malleable, Non-Ductile,
Non-SonorousDo not Have
Lustre
Low melting and boiling pointsBad conductors of Heat and Electricality
Materials - Metals & Non-metals
Metals Non Metals