Question

How will you distinguish a silk fibre from a wool fibre by performing burning test?

Answer 1

We can distinguish a silk fibre from a wool fibre by performing a burning test.
Observation:

• The wool yarn curls away from the flame, producing a sizzling noise. It has the same smell of burnt hair.
• The silk yarn burns slowly and melts. It burns completely and extinguishes itself once the flame is put off, leaving no residue.