Question

a) Clothes made of syntheticbres should not be worn in - b) what burns vigorously and leaves little ash- C) what burns slowly with smell of burning hair d) what shrinks on burning producing black smoke e) what burns readily with the smell of burning paper f) What shrinks if burnt and forms a black bead along with sooty flame​

Answer 1

Answer:

a) Clothes made of ‘synthetic fibers’ shouldn’t be worn in Kitchen/ Laboratory.

b) Cotton burns ‘vigorously’ and leaves some little ash.

c) Wool burns slowly with ‘smell of burning hair’.

d) Polyester shrinks on burning producing ‘black smoke’.

e) Rayon burns readily with the “smell of burning paper”.

f) Acrylic shrinks if ‘burnt’ and forms a “black bead” along with sooty flame.

• Rayon, Polyester, Nylon, Acrylic and Plastic are synthetic fibers these are used in several purposes.

• Rayon, Nylon, polyesters are used in textile industries.
• Acrylic synthetic fiber is used in paints.

Answer 2

Answer:

kitchen labratory woolen yarn etc