Which of the following is known as artificial silk?

Rayon

The correct answer is option 4. Rayon.

Rayon, often referred to as artificial silk, is a semi-synthetic fiber made from natural cellulose fibers, usually derived from wood pulp. It was the first manufactured fiber and was developed as an alternative to silk.

Here's a brief explanation of why rayon is known as artificial silk:

1. Similar Appearance and Feel: Rayon has a similar appearance and feel to silk. It can mimic the luxurious look and soft, smooth texture of silk, making it a popular choice for clothing and textiles.

2. Manufacturing Process: While silk is produced by silkworms spinning cocoons, rayon is made through a chemical process involving the conversion of cellulose from wood pulp or other plant fibers into a soluble compound. This compound is then extruded to form fibers, which are then spun into yarns and woven or knit into fabrics.

3. Affordability: Rayon is generally more affordable than silk, making it accessible to a wider range of consumers who desire the look and feel of silk without the higher cost associated with genuine silk.

Despite its silk-like qualities, rayon does have differences from silk. For example, it may not have the same strength or durability as silk, and its properties can vary depending on the specific manufacturing process used. However, rayon remains a popular choice for various clothing items, linens, and other textiles due to its versatility, comfort, and aesthetic appeal.