Subject :NSO Class : Class 8
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.