Question

In the solid state `PCl_5` exists as, A.`[PCl_4]^(-)` & `[PCl_6]^-` B.covalent `PCl_5` molecules only C.`[PCl_4]^+ & [PCl_6]^-` ions D.covalent `P_2Cl_10` molecules only ?

Answer 1

`"Option B"`

Explanation:

Phosphorus pentachloride, `PCl_5`, is MOLECULAR, and sublimable...of course it reacts with water given the following reaction...

`PCl_5(s) + 4H_2O(l) rarr H_3PO_4(aq) + 5HCl(aq)`...