Question

As indicated by Lewis structures, which of the following species could probably not exist as a stable molecule?​

Answer 1

The options are:

a) NH3

b) N2H2

c) N2H4

d) N2H6

e) N2O4

Option (d) N2H6 is the correct option.

• First, we need to construct a Levis structure for each given options.
• We need to construct structures such that, they do not violate the octet rule.
• N - nitrogen has 5 valence electron. Therefore it can only form 3 bonds, they are - 3 single bonds, 1 double bond and 1 single bond, or 1 triple bond.
• Therefore, N2H6 will be an unstable molecule.