Q. The correct order of boiling points of the hydrides of nitrogen family is
A) NH_{3}>PH_{3}>AsH_{3}>SbH_{3}
B) PH_{3}<AsH_{3}< NH_{3}< SbH_{3}
C) NH_{3}<PH_{3}< SbH_{3}< AsH_{3}
D) NH_{3}<PH_{3}<AsH_{3}<SbH_{3}
Explanation
(b)
The boiling point of NH_{3} is higher due to the presence of hydrogen bonding .the order of boiling point of hydrides of nitrogen family is as
Hydride: PH_{3}<AsH_{3}< NH_{3} <SbH_{3}
B.P. :185 218 239.6 256.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.