Question

Name first discovered alloy. Give its composition also.

Answer 1

An alloy is a mixture of two or more metals or a metal and a non-metal or a metal and a metalloid.

The first discovered alloy was bronze. Bronze is a very useful alloy because it stronger than the constituents which are present in it.

The bronze is a mixture of Copper ($Cu$) and Tin ($Sn$). The composition of the bronze is as follows.

$75-90\%copper$ and $10-25\%Sn$.