Which metal is used for soldering?
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An alloy (solder)
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An alloy (molder)
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An alloy (composer)
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An alloy (friett)
A
Correct answer
Explanation
Solder is an alloy, typically of tin and lead (or lead-free alternatives like tin-silver-copper), with a lower melting point than the metals being joined. This property allows it to flow into joints when heated, creating conductive and mechanical connections in electronics and plumbing.