Question

write about white phosphorous ​

Answer 1

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White phosphorus is less stable and hence more reactive, because of angular strain in the P4 molecule

• It is translucent white waxy solid.
• It glows in dark (chemiluminescence).
• It is insoluble in water but dissolves in boiling NaOH solution.
• It is poisonous.

Answer 2

White phosphorus reacts with oxygen to create phosphorus pentoxide. It is pyrophoric meaning it spontaneously reacts with oxygen and set on fire. The phosphorus pentoxide which is P2O5 is the result of the combination of white phosphorous and oxygen. Both P2O5 and white phosphorous are hygroscopic, meaning they can absorb water. It can also create phosphorous trioxide which is kind of the same as pentoxide, they have similar properties. They absorb water in our lungs and nose and mouth to create phosphoric acid, which is acidic and not a fun thing to have inside you organs. It causes irritation of the eyes, coughing, respiratory problems, headache, bronchitis and edema of the larynx etc. White phosphorus also becomes a liquid when its set alight which means it becomes a sticky gooey mess and it spits due to its volatility and low melting point at only 44 degrees. Its ignition temperature is 30 degrees meaning it ignites at room temperature. In exposure to UV light it creates red phosphorus. It is so unstable because of its bonds which are nicknamed banana bonds due to their bent nature. They are in short, unstable and therefore more reactive bonds. White phosphorus has the chemical formula of P4 in a tetrahedron formation. You can help a white phosphorous burn through applying copper sulphate over the wound as it bonds with the burning phosphorous to make copper phosphite and copper. Also ingested, white phosphorus has a lethal dosage of 1mg / kg which is more poisonous than sodium azide and cyanide ions. So wouldn't be a good idea to eat. White phosphorous is banned as a chemical and incendiary weapon but its valuable use as a smokescreen means that it hasn't been deemed illegal in war, just as an incendiary or chemical weapon according to the Geneva Convention.