Question

Given the formula for hydrazine:

Answer 1

Answer: Option (1) is the correct answer.

Explanation:

A molecule of hydrazine has two nitrogen atoms and four hydrogen atoms. The formula of hydrazine is as follows.

                   $H_{2}N-NH_{2}$

The atomic number of nitrogen is 7 and it there are 5 electrons in its outermost shell. Hence, each nitrogen of hydrazine has one lone pair of electron, two hydrogen atoms are bonded to each nitrogen atom and there is one single bond between both the nitrogen atoms.

Thus, we can conclude that there are 1 pair of electrons are shared between the two nitrogen atoms.  

Answer 2

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.