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MolSynapse / Question bank / p-Block Elements: Groups 15 and 16 / Phosphorus allotropes, phosphine, halides and oxyacids of phosphorus
NEET levelSingle correct optionDifficulty 1 of 3pn129

White phosphorus is stored under water because it

  1. Acatches fire in air at about 303 K
  2. Bis oxidised by water to phosphoric acid
  3. Creacts violently with water
  4. Dis soluble in water

Answer: A

White phosphorus (P4) is very reactive and ignites spontaneously in air near 303 K. It is insoluble in water and does not react with it, so water gives a safe storage medium.
Practice p-Block Elements: Groups 15 and 16 More on Phosphorus allotropes, phosphine, halides and oxyacids of phosphorus

More questions on Phosphorus allotropes, phosphine, halides and oxyacids of phosphorus