Question

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

Answer 1

Explanation:

Goldsmith use the outermost part that is the blue zone of a flame for melting a gold.....

Being the most hottest region of the flame it is used by the goldsmith....

Answer 2

Answer:

A goldsmith uses the outermost zone of a flame, which is non-luminous, to melt gold and silver as it is the hottest zone of the flame, having more temperature.