Question

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

Answer 1

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.........