Question

which of the following fibres on burning smells like burning hair​

Answer 1

Explanation:

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:

Since, synthetic silk is made up of plant, so it smells like burning paper or plastic but woolen silk is made up of protein molecule and hence it gives burning hair smell on burning.