Question

How is phosphine prepared using the following reagent ?
HCl

Answer 1

Preparation of Phosphine using HCl :
The reaction of calcium phosphide with dilute HCl gives phosphine.

\[\ce{\underset{\text{Calcium phosphide}}{Ca3P2} + 6HCl -> \underset{\text{Calcium chloride}}{3CaCl2} + \underset{\text{ Phosphine}}{2PH3} ^}\]