Specify the shape of the following:(a) H−C≡N: (Hydrogen cyanide)(b) H4N+ (Ammonium ion)(c)...

Specify the shape of the following:

(a) H−C≡N: (Hydrogen cyanide)

(b) H4N+ (Ammonium ion)

(c) (Azide ion)

(d) CO32− (Carbonate ion)

Sample Solution (a) The structure shown accounts for all the electrons in hydrogen cyanide. No unshared electron pairs are associated with carbon, and so the structure is determined by maximizing the separation between its single bond to hydrogen and the triple bond to nitrogen. Hydrogen cyanide is a linear molecule.