Fill in the blanks with appropriate words :
Rayon has properties similar to ________ and is there for called _______ .

Explanation

**Step-by-Step Solution:**

1. **Identify the first blank:** The question states that "Rayon has properties similar to ________." To fill this blank, we need to determine what material has properties that are comparable to rayon.

2. **Determine the material:** From the information provided, rayon is noted to have properties similar to silk. Therefore, we can fill in the first blank with "silk."

3. **Identify the second blank:** The next part of the question states, "and is therefore called _______." Here, we need to find out what rayon is classified as based on its properties.

...