State the main components of the following alloys :
(i) Brass
(ii) Duralumin
(iii) Bronze.

(i) Brass — Cu [60-80%], Zn [40-20%]

(ii) Duralumin — Al [95%], Mg [0.5%], Mn [0.5%], Cu [4%]

(iii) Bronze — Cu [80%], Zn [1%], Sn [19%]