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प्रश्न
Naphthalene balls are obtained from coal tar and are used as
पर्याय
mosquito repellant
honey bee repellant
moth repellant
snake repellant
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उत्तर
moth repellant
Explanation:
Naphthalene balls are used to repel moths and other insects (in stored clothes, etc).
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संबंधित प्रश्न
Describe how coal is formed from dead vegetation. What is this process called?
Describe characteristics of coke.
Coal tar is a mixture of various substances.
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Loca is obtained from mines.
Write the characteristics and some important uses of coal.
Which one among the following is an extremely strong but lightweight material is used in mountain bikes and tennis rackets?
______ coal is black and dull coal.
Activated carbon, used in filters for water and air purification and in ______ machines is obtained from coal.
Coke is used in the preparation of dyes, explosives, paints synthetic fibers, and pesticides.
What is deep mining?
