Question

Explain with help of an activity that synthetic fibres melt on heating.​

Answer 1

Answer:

It is used in the manufacture of ropes, nets for fishing and seat belts. Polyester – This fabric is made from coal and oil and is wrinkle-free and easy to clean. It is used for the production of caps, raincoats, and ropes.

Answer 2

Answer:

Material required- Teacher (supervision)

synthetic fibres, Bunsen burner

Burn the fabric by Bunsen burner. Be careful. synthetic fibre catch fire immediately

Observations- you will observe synthetic fibres burning and melting is observed. They form bead like structure. Just like burn Kurkure

conclusion- synthetic fibres melt on heating.