Question

4. Why goldsmiths blow the outermost
zone of flame to melt gold and silver?
(a) because it is the least hot
(b) because it has unburnt wax
vapours
(c) because it supports partial
combustion
(d) because it supports complete
combustion​

Answer 1

Answer:

d) because it supports complete combustion

Answer 2

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

(a) because it is the least hot

✅(b) because it has unburnt wax vapours

(c) because it supports partial combustion

(d) because it supports complete combustion