Th boiling point of NO is higher than that of N2 because the former has higher moleculer weight
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B
The boiling point of NO is higher because of greater vander Waals forces than in N2
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C
The boiling point of NO is higher than that of N2 because of dipole-dipole forces.
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D
The boiling point of N2 is higher because N2 is inert.
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Solution
The correct option is C
The boiling point of NO is higher than that of N2 because of dipole-dipole forces.
Boiling point of NO (−125∘C) is much higher than that of N2−195∘C because NO is polar and its molecules are attracted intermolecularly by dipole-dipole forces, N2 is nonpolar.