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  • Carbon - I
  • Which of the following element exists only in a single el...
Multiple choice

Which of the following element exists only in a single elemental form?

  1. Carbon

  2. Nitrogen

  3. Oxygen

  4. Phosphorus

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Out of these elements, only nitrogen does not possess any allotropic modification.

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