Question

The characteristics of different fibres are listed
as
W: I am strong, elastic, light and burn slowly.
I shrink on heating and form hard beads
with smell of burning hair.
X: I burn completely leaving no residue.
Y: I can be woven like silk fibres and dyed in
a wide variety of colours. I burn quickly
with a smell of burning paper.
Z: I do not get wrinkled easily. I burn slowly
and produce black smoke.
W, X, Y and Z are respectively
(a) Terylene, rayon, cotton and nylon
(b) Bakelite, nylon, rayon and cotton
(c) Melamine, PVC, nylon and rayon
(d) Nylon, cotton, rayon and polyester.​

Answer 1

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