What is an alloy? How is it prepared? Name the alloy which is used for welding electrical wires together.
Alloy is a mixture of two or more metals or non-metals. Alloys are made by mixing the metals in their molten state. It is prepared by first melting the primary metal and then dissolving the other metal in definite proportion. It is then cooled to room temperature. Solder is used for welding electrical wires together.