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Phosphorus is stored in? a.) Water b.) Ammonia c.) Alcohol d.) Kerosene oil

Phosphorus is stored in?
a.) Water
b.) Ammonia
c.) Alcohol
d.) Kerosene oil

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 9723 Points
19 days ago
Hint: We know that phosphorus is a non metal. Phosphorus is less stable and therefore very reactive non metal especially white phosphorus, it is the allotropic form of phosphorus. Step by step solution: Phosphorus is a very reactive non-metal. It catches fire if exposed to air. White phosphorus is highly reactive, and spontaneously ignites at about 30°C in moist air. It is usually stored under water, to prevent exposure to the air. It is also extremely toxic, even in very small quantities. white phosphorus is less stable and therefore highly reactive because of angular strain P4 molecules where the angles are only 60°. White Phosphorus is stored under water and not kerosene. It is kept submerged in water because it is a highly reactive metal and when it is exposed to air it autoignition as its ignition temperature is low. When exposed to air, it is oxidized rapidly to phosphorus pentoxide. Such heat is produced by this reaction that the element bursts into a yellow flame and produces a dense white smoke. So it is stored in water as in water hydrogen content is greater than oxygen it does not combine with oxygen. So, the correct option is “A”. Note: As it is dangerously reactive in air, it should be handled with forceps, if it's contacted with skin it may cause severe burns.

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