Multiple choice general knowledge science & technology

Which of the following is not a color taken by phosphorus?

  1. Yellow-white

  2. Silver-Gray

  3. Red

  4. Violet-Black
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B Correct answer
Explanation

Phosphorus exists primarily in white (yellow-white), red, and black (violet-black) allotropic forms, each with distinct colors and properties. White phosphorus appears yellow-white, red phosphorus is dark red, and black phosphorus has a violet-black luster. Silver-gray is not one of the characteristic colors of phosphorus allotropes.

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