Home » mcq » chemistry » Poison used for killing rats is A. Calcium phosphide (Ca3P2) B. Zinc phosphide (Zn3P2) C. Magnesium nitride (Mg3N2) D. Magnesium phosphide (Mg3P2)
Calcium phosphide (Ca3P2)
Zinc phosphide (Zn3P2)
Magnesium nitride (Mg3N2)
Magnesium phosphide (Mg3P2)
Answer is Wrong!
Answer is Right!
The correct answer is: B. Zinc phosphide (Zn3P2)
Zinc phosphide is a white, odorless powder
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that is used as a rodenticide. It is poisonous to rats and other rodents when ingested. When zinc phosphide comes into contact with stomach acid, it releases phosphine gas, which is toxic to the animals.
Calcium phosphide (Ca3P2) is also a white, odorless powder that is used as a rodenticide. However, it is less effective than zinc phosphide and is more likely to cause secondary poisoning in other animals that eat the dead rodents.
Magnesium nitride (Mg3N2) is a white, odorless powder that is used as a flame retardant. It is not poisonous to rats or other rodents.
Magnesium phosphide (Mg3P2) is a white, odorless powder that is used as a fertilizer. It is not poisonous to rats or other rodents.
It is important to note that all of these substances can be dangerous if ingested, so it is important to use them safely and to keep them out of reach of children and pets.