How does PCl₅ react with the following?
a) Water b) C₂H₅OH
c) CH₃COOH d) Ag

$\text{ a) }{\mathrm{PCl}}_5\left(\text{ cold }\right)+{\mathrm{H}}_2\mathrm{O}\to {\mathrm{POCl}}_3+2\mathrm{HCl}$
${\mathrm{PCl}}_5\left(\text{ hot }\right)+4{\mathrm{H}}_2\mathrm{O}\to {\mathrm{H}}_3{\mathrm{PO}}_4+5\mathrm{HCl}$
$\text{ b) }{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}+{\mathrm{PCl}}_5\to {\mathrm{C}}_2{\mathrm{H}}_5\mathrm{Cl}+{\mathrm{POCl}}_3+\mathrm{HCl}$
$\text{ c) }{\mathrm{CH}}_3\mathrm{COOH}+{\mathrm{PCl}}_5\to {\mathrm{CH}}_3\mathrm{COCl}+{\mathrm{POCl}}_3+\mathrm{HCl}$
$\text{ d) }{\mathrm{PCl}}_5+2\mathrm{Ag}\to 2\mathrm{AgCl}+{\mathrm{PCl}}_3$