Question

Orlon has a unit of __________.

Answer 1

Hint: We know that the Orlon is the commercial name for the polymer polyacrylonitrile. Since Orlon is a homo polymer, it is easy to find the repeating unit. The repeating unit found is the monomer for Orlon also called polyacrylonitrile.

Complete answer:
Orlon is the name that is used in trade purposes for Polyacrylonitrile (PAN). It is a polymer of Acrylonitrile which is commonly known as vinyl cyanide (VCN). Orlon is a synthetic acrylic fiber which is used in the textile industry. The fiber is resistant to sunlight and atmospheric gases. This property of Orlon makes it suitable for outdoor uses. It is resistant to shrinkage and has a soft and warm feel. It is used in the manufacture of over coating. Dress fabrics. Knitted wear, and washable woven sportswear. Orlon is an additional polymer.
The common name for acrylonitrile is vinyl cyanide. This is because the common name for the nitrile functional group is cyanide and the nitrile functional group is attached at the vinyl position of the carbon-carbon double bond, hence the name vinyl cyanide. PAN or orlon is also known as vinyl cyanide. This is a polymer that is thermoplastic in nature. A thermoplastic polymer can be heated to melt in a liquid and then it can be shaped easily according to the need. After cooling it, it will retain the shape forever.
Therefore, Orlon has a unit of vinyl cyanide.

Note:
Remember that the options given; acrolein is one of the options. Do not get confused between acrolein and acrylonitrile as acrolein has an aldehyde functional group and acryl nitrile has a nitrile functional group