Nitrogen fixation. most nitrogen fixation is performed by certain kinds of bacteria . Some of this bacteria live in bumps called nadules (NAHJ oolz) on the roots of certain plants.
Option (C) Electron.
Explanation:
Because Vander wall forces arises due to the small moment when a temporary dispole is created between the atoms. The more the electron the stronger the polarization will be and hen stronger bond.
% yield = actual yield/ theoretical yield x 100%
4.8946 / 0.4 = 12.2365
% yield = 12.2365 x 100 = 1223.65%