Q. Phosphine, acetylene and ammonia can be formed by treating water with
A) $Mg_{3}P_{2},\ Al_{4}C_{3},\ Li_{3}N$
B) $Ca_{3}P_{2},\ CaC_{2},\ Mg_{3}N_{2}$
C) $Ca_{3}P_{2},\ CaC_{2},\ CaCN_{2}$
D) $Ca_{3}P_{2},\ Mg_{2}C,\ NH_{4}NO_{3}$
Explanation
(c)
$Ca_{3}P_{2} + 6H_{2}O\ \rightarrow 3Ca(OH)_{2} + PH_{3} \uparrow$
phosphine
$CaC_{2} + 2H_{2}O\ \rightarrow Ca(OH)_{2} + C_{2}H_{2}\ \uparrow$
acetylene
$CaCN_{2} + 3H_{2}O\ \rightarrow CaCO_{3} + 2NH_{3}\ \uparrow$
ammonia
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.