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Chemistry miscellaneous
  1. Poison used for killing rats is
    1. Calcium phosphide (Ca3P2)
    2. Zinc phosphide (Zn3P2)
    3. Magnesium nitride (Mg3N2)
    4. Magnesium phosphide (Mg3P2)
Correct Option: B

Zinc phosphide is an inorganic compound that is used in pesticide products as a rodenticide. Formulated as attractive bait, it releases phosphine gas once it is exposed to acid and moisture in the stomach. The phosphine gas is very toxic to all animals.


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