Question

(7) Which of the following fibres when burnt, an odour like burning
hair comes out?
A. Nylon B. Wool C. Cotton D. Jute​

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

wool wool wool wool wool wool wool wool