The boiling points of the following hydrides follow the order of:

Question

The boiling points of the following hydrides follow the order of: (A) NH 3> AsH 3> PH 3> SbH 3 (B) SbH 3> AsH 3> PH 3> NH 3 (C) SbH 3> NH 3> AsH 3> PH 3 (D) NH 3> PH 3> AsH 3> SbH 3

Tardigrade Admin · Accepted Answer

Compounds NH 3 PH 3 AsH 3 SbH 3Boiling point (in K) 238 185 211 254 (i) From PH 3 to SbH 3 boiling point increases regularly due to increase in van der Waals forces of attraction. (ii) NH 3 has exceptionally high boiling point due to hydrogen bonding. ∴ The boiling points are of the order SbH 3> NH 3> AsH 3> PH 3

Q. The boiling points of the following hydrides follow the order of:

$N H_{3} > A s H_{3} > P H_{3} > S b H_{3}$

$S b H_{3} > A s H_{3} > P H_{3} > N H_{3}$

$S b H_{3} > N H_{3} > A s H_{3} > P H_{3}$

$N H_{3} > P H_{3} > A s H_{3} > S b H_{3}$

Q. The boiling points of the following hydrides follow the order of:

NH3​>AsH3​>PH3​>SbH3​

SbH3​>AsH3​>PH3​>NH3​

SbH3​>NH3​>AsH3​>PH3​

NH3​>PH3​>AsH3​>SbH3​

$N H_{3} > A s H_{3} > P H_{3} > S b H_{3}$

$S b H_{3} > A s H_{3} > P H_{3} > N H_{3}$

$S b H_{3} > N H_{3} > A s H_{3} > P H_{3}$

$N H_{3} > P H_{3} > A s H_{3} > S b H_{3}$