Question

Activity 3.6
Take an artificial (synthetic) silk thread
and a pure silk thread. Burn these
threads carefully. Did you notice any
difference in the smell while burning?
Now, burn a woollen fibre carefully.
Did it smell like burning of artificial
silk or that of pure silk? Can you
explain why?​

Answer 1

Explanation:

Artificial silk thread and pure silk thread. when burn these threads carefully. The fabric which burns giving a smell and burning paper is an artificial silk .

Answer 2

Explanation:

Did the burning of the woollen fibre smell like burning of artificial silk or that of pure silk? Burning of synthetic silk gives an odour of burning plastic. Burning of silk fiber gives an odour of burning hair.