NEET 2020

NEET 2020 Chemistry question on p-Block Elements

Identify a molecule which does not exist.
  1. A.
    Li2\text{Li}_2
  2. B.
    C2\text{C}_2
  3. C.
    O2\text{O}_2
  4. D.
    He2\text{He}_2
Show answer

Correct option: D

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