Multiple choice

Which metal is used for soldering?

  1. An alloy (solder)

  2. An alloy (molder)

  3. An alloy (composer)

  4. An alloy (friett)

Reveal answer Fill a bubble to check yourself
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.