Environmental Sciences, asked by pranjitroy, 1 year ago

Why does silk give out the smell of burning hair when burnt

Answers

Answered by Róunak
7
Silk is natural protein fibre. 
Wool is fibrous protein. 
The fiber is almost pure cellulose. 

Silk and wool are made up of protein molecules; therefore, when we burn them, they create "burning-hair" smell [Note: Silk and wool are "ANIMAL" products]. However, cotton is made up of pure "carbohydrate"; therefore, when we burn it, it creates "burning-paper" smell [Note: Cotton is a "PLANT" product]. 

Note: Paper is made from "cellulose" (a typical product of plants!). Cellulose is a carbohydrate. Cotton consists of pure carbohydrate! 

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