They use a metallic blow pipe to blow outermost zone of flame

It is because

  1. the outermost zone of flame is hottest zone
  2. Gold and silver have high melting points
  3. It helps in easily melting gold,metal into different shapes and patterns


Goldsmith melting gold looks like

Goldsmith melting silver ring - Teachoo.jpg




NCERT Question 10 - Which zone of a flame does a goldsmith use for melting gold and silver and why?
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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.