Question

Which of the following is the decreasing order of boiling points of $V$ group hydrides?

• A. $NH_{3}>PH_{3}>As H_{3}>SbH_{3}$
• B. $SbH_{3}>AsH_{3}>PH_{3}>NH_{3}$
• C. $PH_{3}>NH_{3}>AsH_{3}>SbH_{3}$
• D. $SbH_{3}>NH_{3}>AsH_{3}>PH_{3}$

Answer 1

Answer: (D)

$SbH_{3}>NH_{3}>AsH_{3}>PH_{3}$

Answer 2

The decreasing order of boiling point of V group hydride, is as Hydride $SbH _{3} > NH _{3} > AsH _{3} > PH _{3}$ B.pt $256.0\,\,\, 239.6\,\,\, 218.0\,\,\, 185.0$