NCERT VI Social Sciences
What is the characteristic of naphthalene balls?
Answers
Sublime in nature means solid state is directly convt into gaseous state.
It has characteristic aroma or smell.
It is used in many places to keep insects away..
Naphthalene is the most abundant component of coal tar. Naphthalene is released into the environment upon burning organic materials, such as fossil fuels and wood.Naphthalene is released into the environment upon burning organic materials, such as fossil fuels and wood. It is an insecticide that is also used as a repellent. Naphthalene was first registered as a pesticide in the United States in 1948 with the U.S. Department of Agriculture (USDA). Naphthalene was first registered as a pesticide in the United States in 1948 with the U.S. Department of Agriculture (USDA). Naphthalene is used for control of cloth moth. In this application , the naphtha vapors fill the airtight container and kill the insect .