Calcium phoshide formed by reacting calcium orthophosphate with `Mg` was hydrolysed
Channel: Doubtnut
Date: 12/07/2020

Calcium phoshide formed by reacting calcium orthophosphate with `Mg` was hydrolysed by water. The phosphine evolved was burnt in air to yield `P_2O_5`. How many litres of air, containg `21%` by volume of `O_2`, was required to burn `PH_3` and how many grams of magnesium metaphosphate would be obtained if 204 g of Mg was was used for reducing calcium phosphide and the volumes of the gases were measured at STP?