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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
Coal tar is a mixture of various substances.
Explain the following.
Petrol, diesel, and coal are fossil fuels.
Explain the different types of coal.
Coal is processed in industries to get some useful products. Which of the following is not obtained from coal?
Coal is formed from the remains of
Coal tar is a black, thick ______ with an ______ smell.
During the processing of coal to get coke, coal tar and ______ are also obtained.
Write True/False against the following statement.
Under high temperature and pressure, dead plants get slowly converted to coal.
When lignite becomes darker and harder over time ______ coal is formed.
Activated carbon, used in filters for water and air purification and in ______ machines is obtained from coal.
