Consider the following statements regarding nitrogen:
I. Nitrogen contains a triple bond.
II. Nitrogen is a triatomic gas.
III. Forces acting between nitrogen molecules are weak van der Waals forces.
Which of the statements given above are correct?
I and III only
Nitrogen exists as a diatomic molecule, N2, in which the two nitrogen atoms are joined by a strong triple bond, N triple bonded to N, confirming statement I. Since N2 is diatomic and not triatomic, statement II is incorrect. As N2 is a non-polar molecule, the only intermolecular forces acting between nitrogen molecules are weak van der Waals (London dispersion) forces, which is why nitrogen has a very low boiling point of about -196 degrees Celsius; this confirms statement III. Hence, statements I and III are correct.
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