Multiple choice

Which form of phosphorus is used in safety metals?

  1. Red Phosphorus

  2. White Phosphorus

  3. Yellow Phosphorus

  4. Black Phosphorous

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A Correct answer
Explanation

Red phosphorus is used in safety matches because it is stable and less reactive than white phosphorus. The striking surface contains red phosphorus, which reacts with the match head compounds when rubbed against it. White phosphorus is too dangerous and spontaneously ignites in air.