Question

which of the following fibre's give smell of burning grass on burning​

Answer 1

Answer:

Cotton is a plant product and paper is also made from plants. So when cotton is burnt, it smells like burning paper. While wool and hair both are from animals, hence on burning they smell similar.

Answer 2

Answer:

The Burn Test to Identify Textile Fibers - Amazon AWS

The burn test is a simple, somewhat subjective test based on the ... Be prepared to note the following when testing your fibers: ... What type of odor do the fumes have? ... Polyester: It will shrink from the flame and burn slowly giving off black.