Question

why is it easier to tie aknot with cotton string as compared to silk string​

Answer 1

Answer:

it is easier to tie a knot with a cotton string as compared to silk string because silk string has a polished surface which when knot, slips off it's own surface but while in case of cotton it is not as slippery as silk though it also has some small thread like structure which also help in friction

Answer 2

Answer:

because silk is very smooth ,when we knot atie the is slips and open but incase of cotton aknot of tie is not open because fiber of cotton stuck together