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Q: Which of the following is diatomic?
  • A. argon
  • B. helium
  • C. fluorine
  • D. methane
Correct Answer: Option C - In the above, Argon (Ar) and Helium (He) are monoatomic while fluorine (F₂ ) is diatomic and methane (CH₄ ) is polyatomic
C. In the above, Argon (Ar) and Helium (He) are monoatomic while fluorine (F₂ ) is diatomic and methane (CH₄ ) is polyatomic

Explanations:

In the above, Argon (Ar) and Helium (He) are monoatomic while fluorine (F₂ ) is diatomic and methane (CH₄ ) is polyatomic