The Elements of Group 5A,the Nitrogen Family,form Compounds with Hydrogen

Multiple Choice

The elements of group 5A,the nitrogen family,form compounds with hydrogen having the boiling points listed below: SbH₃,-17 °C; AsH₃,-55 °C; PH₃,-87 °C; and NH₃,-33 °C
The first three compounds illustrate a trend where the boiling point decreases as the mass decreases; however,ammonia (NH₃) does not follow the trend because of _____.

A) debye forces
B) metallic bonding
C) hydrogen bonding
D) London dispersion forces
E) ionic bonding