Goldsmiths blow the outermost zone of a flame with a metallic blow-pip – InterviewSolution

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1.	Goldsmiths blow the outermost zone of a flame with a metallic blow-pipe for melting gold and silver . Why do they use the outermost zone of the flame?
Answer» ANSWER :The OUTERMOST zone of the flame is the hottest part, so GOLDSMITHS uses it for melting gold and SILVER.

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