Although nitrogen does not adsorb on surface at room temperature, it adsorbs on the same surface at `83K` . Which one of the following statements is correct?

Options

A. At `83 K`, there is formation of monomolecular layer
B. At `83 K`, there is formation of multimolecular layer
C. At `83 K`, nitrogen molecules are held by chemical bonds
D. At `83 K`, nitrogen is adsorbed as atoms.

Answer

B

Explanation

Physical adsorption of `N_(2)` , which forms multimolecular layers, takes place at `83K` .