Hydrogen And Its Compounds Question 93
Question: One mole of calcium phosphide on reaction with excess water gives
[IIT 1999]
Options:
A) One mole of phosphene
B) Two moles of phosphoric acid
C) Two moles of phosphine
D) One mole of phosphorus pentaoxide
Show Answer
Answer:
Correct Answer: C
Solution:
$ \underset{\begin{smallmatrix} \text{(Cal}\text{. phosphide)} \\ \text{ 1 mole} \end{smallmatrix}}{\mathop{Ca_3P_2}}+6H_2O\to \underset{\begin{smallmatrix} phosphene \\ \text{ (2 moles)} \end{smallmatrix}}{\mathop{2PH_3}}+3Ca{{(OH)}_2} $
BETA
