Question

(i) (a) Why PCl₅ gives fumes in moisture ?

(b) Why Interhalogens are more reactive than pure halogens?

(ii) Draw the structures of the following :

(a) PCl₅(s)

(b) H₂S₂O₈

(c) XeF₄

Answer 1

(i) (a) Because of the release of HCl gas and POCI₃ on hydrolysis. 

(b) Because of low bond dissociation enthalpy of interhalogens.