Q. Which among the following is the first man made fibre (silk)?
Answer: Viscose
Notes: Rayon is the first man-made fiber, also known as "artificial silk". It was developed in the late 19th century as a substitute for natural silk. Rayon is a semi-synthetic fiber made from wood pulp. It has properties similar to silk and a shiny appearance.  Nylon is the first fully synthetic fiber. It is made from coal, water, and air. Nylon is strong, elastic, and easy to wash. It is used to make socks, ropes, tents, and more.

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