Given the formula for hydrazine:

How many pairs of electrons are shared between the two nitrogen atoms?

(1) 1 (3) 3

(2) 2 (4) 4

Hydrazine can be used to control corrosion, precursor material of plastics, fungicides, herbicides, and pharmaceuticals. The structural formula of hydrazine is H2N-NH2. each n is capable of three bonds. 2 electrons are already shared by 2 H, so only one pair of electrons is shared between the two nitrogens.