Question

A constituent of mothballs is:
A.$C{H_3}COOH$
B.${H_2}S$
C.${C_{10}}{H_8}$
D.$C{H_3}{(C{H_2})_{12}}COOH$

Answer 1

Hint: Mothballs are a pesticide that are used to keep moths, silverfish, and other fiber pests away from wool and other natural fiber apparel and materials. The usage of mothballs is regulated by the US Environmental Protection Agency, and they should only be used as directed on the label (EPA).

Complete answer:
Mothballs - Mothballs are little balls of chemical pesticide and deodorant that are sometimes used to protect clothing and other items against mildew and moth larvae damage. Because of the flammability of naphthalene, many current mothball formulas employ 1,4-dichlorobenzene instead.
Although both substances have the same NFPA 704 flammability rating, the latter formulation may be slightly less flammable. The latter compound is also known as paradichlorobenzene, p-dichlorobenzene, or PDB, making it difficult to identify unless a potential buyer is familiar with all of these acronyms.
Both formulations contain the powerful, pungent, sickly-sweet odor that mothballs are known for. Sublimation occurs when naphthalene and 1,4-dichlorobenzene are vaporized from a solid state into a gas.
Naphthalene is found in mothballs. The chemical formula for naphthalene is ${C_{10}}{H_8}$ . An image of naphthalene’s structure has also been included.
So, the final answer is option (C) i.e. ${C_{10}}{H_8}$ .

Note:
Humans and pets are both poisoned by the toxins in mothballs. Headaches, nausea, eye and nose discomfort, and coughing are just a few of the reversible health problems that mothballs can induce. Naphthalene exposure can have more catastrophic consequences, such as hemolytic anemia.