Question

Naphthalene balls are obtained from coal tar and are used as
(a) mosquito repellant (c) moth repellant
(b) honey bee repellant (d) snake repellant


NCERT Class VIII
Science - Exemplar Problems

Chapter 5. Coal and Petroleum

Answer 1

Naphthalene balls can be defined as small balls which are made up of chemical pesticide and deodorant, and sometimes used when storing clothing and other articles susceptible to damage from the formation of larva of moth.

So we can see the correct answer in the given question will be moth repellant.

Answer 2

Answer:the answer is (c) moth repllent

Explanation:

Because it realeased a gas from which it help to repllent the moths