Consider the chemistry of phosphorus halides. Which of the following statements are true? — p Block Elements Chemistry Question

💡 Solution & Explanation

$PCl_3$ hydrolyses to $H_3PO_3$ and $HCl$. Solid $PCl_5$ is ionic $[PCl_4]^+[PCl_6]^-$. Reaction of $P_4$ with $SOCl_2$ yields $PCl_3$, whereas with $SO_2Cl_2$ it yields $PCl_5$. Statement C is false; in trigonal bipyramidal $PCl_5$, the two axial bonds are longer and weaker than the three equatorial bonds.