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Question
Which property of 'solder' alloy makes it suitable for welding electrical wires?
Solution
Solder is an alloy of lead and tin. Its composition is 50 percent lead (Pb) and 50 percent tin (Sn). The melting point of solder is very low and is even lower than its constituting metals (Pb and Sn). Thus, the low melting point of solder makes it suitable for welding electrical wires.
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