Which of these doesn’t exist?

Question

Which of these doesn’t exist? (A) PH 3 (B) PH 5 (C) LuH 3 (D) PF 6

Tardigrade Admin · Accepted Answer

PH 5 does not exist because d-orbital of ' P ' interacts with s-orbital of H. Bond formed is not stable and not energetically favorable. It depends on size and orientation of interaction.

Q. Which of these doesn’t exist?

$P H_{3}$

$P H_{5}$

$Lu H_{3}$

$P F_{6}$

$P H_{5}$ does not exist because d-orbital of ' $P$ ' interacts with s-orbital of $H$ .
Bond formed is not stable and not energetically favorable.
It depends on size and orientation of interaction.

Q. Which of these doesn’t exist?

PH3​

PH5​

LuH3​

PF6​

PH5​ does not exist because d-orbital of ' P ' interacts with s-orbital of H. Bond formed is not stable and not energetically favorable. It depends on size and orientation of interaction.

$P H_{3}$

$P H_{5}$

$Lu H_{3}$

$P F_{6}$

$P H_{5}$ does not exist because d-orbital of ' $P$ ' interacts with s-orbital of $H$ .
Bond formed is not stable and not energetically favorable.
It depends on size and orientation of interaction.