What is the molecular polarity for chlorine, hydrogen chlorine, dinitrogen, ammonia gases?

1 Answer
May 6, 2017

Well, both chlorine, and dinitrogen molecules are binuclear.......

Explanation:

So, we have #Cl_2#, and #N-=N# molecules. Given that these are homonuclear, diatomic molecules, there is NO POLARITY in the #"element"-"element"# bonds, i.e. no charge separation. On the other for their hydrides, #NH_3#, and #HCl#, there is substantial bond polarity:

#stackrel(delta+)H-stackrel(delta-)Cl#, and #H_2stackrel(delta-)Nstackrel(delta+)H#

Hydrogen bonding could be invoked for BOTH hydride species.........