Question

Identify the incorrect statement related to $PC{l}_5$ from the following:

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> NEET 2019

• A. $PC{l}_5$ molecule is non-reactive
• B. Axial $P-Cl$ bonds are longer than equatorial $P-Cl$ bonds
• C. Two axial $P-Cl$ bonds make an angle of $180°$ with each other
• D. Three equatorial $P-Cl$ bonds make an angle of $120°$ with each other

Answer 1

The correct option is A $PC{l}_5$ molecule is non-reactive

Axial bond $:240pm$
Equatorial bond $:202pm$

(d) is incorrect because of longer and hence weaker axial bonds , $PC{l}_5$ is a reactive molecule.