Question

Identify which of them are polar and non-polar
(a) `HF` (b) `BeCI_(2)` (c ) `HgCI_(2)` (d) `NH_(3)`
(e) `H_(2)O` (f) `N_(2)` (g) `AICI_(2)` (h) `C CI_(4)`
(i) `CI_(2)` (j) `SiCI_(4)` .

Answer 1

Except `CI_(2)` and `N_(2)` all other molecules have polar bond But only `HF,NH_(3),H_(2)O` are actully polar In these `mu_("net")ne0` due to their structure. In the rest of the molecules the net `mu` is zero, due to symmetric (regular) geometry .