Question

Goldsmiths use the outerzone of the flame for melting gold and silver. Give reason.​

Answer 1

Answer:

outer zone is the blue flame zone which is the hottest zone of a flame, so its easier to melt gold with that heat

Answer 2

Here your answer....pls mark as brainliest

Explanation:

This is because the outermost zone of the flame undergoes complete combustion and is the hottest part of the flame.