Question

which zone of a flame does a goldsmith use to make ornaments ? why ?​

Answer 1

Answer:

The goldsmith uses the outermost zone of the flame to use for melting gold and silver because it is the hottest part of the flame and undergoes complete combustion.

Answer 2

A goldsmith uses the non-luminous zone (outermost zone) of candle flame to melt gold and silver because it is the hottest part of the candle flame and has most temperature.