Calcium phosphide when reacted with HCl a colourless rotten fish smelling gas is formed, which decom

Question

Calcium phosphide when reacted with HCl a colourless rotten fish smelling gas is formed, which decomposes in presence of sunlight to give\

Professor PC Thomas Classes · Answer

$\mathrm{Ca}_{3} \mathrm{P}_{2}+6 \mathrm{HCl} ightarrow 3 \mathrm{CaCl}_{2}+2 \mathrm{PH}_{3}$\ $\mathrm{PH}_{3}$ decomposes in presence of light to form red P and $\mathrm{H}_{2}$\