Your father purchase a woolen sweater for you. How you check its purity
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Answered by
50
if we put the woolen sweater near the lighted match stick, if it is a pure wool then it will not catch fire whereas if it is a mixed fibre wool will felt as it contains man-made polymers which melt easily....
hope this will help.
hope this will help.
Answered by
19
Take the sweater near the lighted match stick or the source of heat if it will melt or burnt it is mixed with polymer it is polywool and if it burnt it is mixed with cotton.
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