Question

Naphthalene balls is used to repel moths and other insects is obtained from:
 $ A) $ Coal tar
 $ B) $ Petroleum
 $ C) $ Coke
 $ D) $ Paraffin

Answer 1

Hint :Naphthalene balls used to repel moth and other insects are also obtained from coal tar. The gases present in coal gas are combustible. These days bitumen, a petroleum product, is used in place of coal tar for metalling roads.

Complete Step By Step Answer:
The raw material required for manufacturing Naphthalene Balls are Naphthalene flakes, camphor, phenol etc.
Naphthalene is an aromatic compound that is widely used for the production of phthalic anhydride, superplasticizers, and intermediate products such as Cleve's acids in dye production.
The naphthalene balls are insect repellant, so these balls can be directly kept between the clothes. The naphthalene has a property of insect repellent because of its odour. Naphthalene is an aromatic hydrocarbon that has a formula $ {C_{10}}{H_8} $ .
Naphthalene may be produced from either coal tar or petroleum. Distillation and fractionation of coal tar is the most common production process. The naphthalene is then recovered by fractionation, decolorized, and purified by crystallization. Naphthalene produced from petroleum is about 99% pure.
So, the correct answer is $ A) $ Coal tar.

Note :
Naphthalene poisoning is a type of poisoning that happens when naphthalene is ingested. Extreme harming can bring about haemolytic iron deficiency. Naphthalene is potentially cancer-causing to people as there is deficient proof in people for the cancer-causing nature of naphthalene, anyway there is adequate proof in trial creatures for the cancer-causing nature of naphthalene. Treatment of naphthalene poisonousness for the most part follows similar medicines required for haemolytic iron deficiency, which includes a progression of blood transfusion, to reestablish sound degrees of hemoglobin.