Mention the Properties of Metals ?

Explanation

Physical properties of metals are :
i) Metals are usually hard.
ii) They are Sonorous,
iii) They are lustrus
iv) Metals exhibit malleability and ductility
v) They exhibit high tensil strength and have high densities:
Roasting : It is a process in which sulphide ore is heated in the presence of oxygen to convert into oxide
`2Zns-3O to 2ZnO + 2SO_2`
Calcination : It is a process in which carbonate ore in heated in the absence of air of form oxides.
`ZnCO_(3(s)) overset("heat")to ZnO_((s)) + CO_2`
By reduction process Zn can be extracted from its ore.
Reduction : `2ZnO+ C to ZnO + CO_2`