Question

Which zone of a flame does a goldsmith use for melting gold and silver?

• A. Outer zone (blue)
• B. Middle zone (yellow)
• C. Innermost zone (black)
• D. Gold and silver cant be melted

Answer 1

The correct option is A Outer zone (blue)

A goldsmith uses the outer zone (non-luminous zone) of a candle flame to melt gold and silver because it is the hottest zone, has a very high temperature and complete combustion takes place in the outermost zone of the flame.