Assertion: Effusion rate of oxygen is smaller than nitrogen.
Reason: Molecular size of nitrogen is smaller than oxygen.

Why is nitrogen more stable than oxygen?

Assertion: The diffusion rate of oxygen is smaller than that of nitrogen under identical conditions. Reason: Molecular mass of nitrogen is smaller than that of oxygen.

Assertion Nitrogen has higher first ionisation energy than oxygen. Reason Atomic radius of nitrogen is smaller than that of oxygen.

1st I.P of nitrogen is higher than oxygen. Explain.

Explain, why ionization enthalpy of oxygen is smaller than nitrogen ?

Statement-1: Noble gases can be liquefied. Statement-2: Molecular mass of nitrogen is smaller than that of oxygen.