Question

Naphthalene is used ....
(A) As "moth balls" to protect woollen clothes from moths

(B) To increase illuminating power of coal gas

(C) To manufacture insecticides and other medicinal products

(D) All of these​

Answer 1

Answer:

C) to manufacture insecticides and other medicinal products

Answer 2

D) All of these

Explanation:

Naphthalene is highly volatile constituent. It is basically made by the process of crystallization from condensed coal tar. It is also known as camphor or white tar . It’s molecular formula is ($C_{10}H_{8}$).  It has many other uses such as:

- Used in manufacturing phthalic anhydride.

- Helps in manufacturing a very famous kind of plastic called PVC.  

- Also used in making dyes and paints.