MCQ
Naphthalene balls are obtained from coal tar and are used as:
  • A
    Mosquito repellant.
  • B
    Honey bee repellant.
  • Moth repellant.
  • D
    Snake repellant.

Answer

Correct option: C.
Moth repellant.

Naphthalene balls are used to repel moths and other insects (in stored clothes, etc).

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free