Question

Why goldsmiths blow the outermost zone of a flame to melt gold and silver? *

a)because it is the least hot

b)because it has unburnt wax vapours

c)because supports partial combustion

d)because it supports complete combustion​

Answer 1

Answer:

a because it is the least hot

Explanation:

i think it may help you

Answer 2

Goldsmiths blow the outermost zone of flame; because it supports complete combustion

• The outermost flame zone is the highest temperature; they use the non-luminous area of a candle flame ) which is blue in colour.

• It burns with the supply with air

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