The correct order of ligands arranged in increasing field strength:

\({\mathrm{H}}_{2}\mathrm{O}<{\mathrm{OH}}^{-}<{\mathrm{CN}}^{-}<{\mathrm{NH}}_{3}\)

\({\mathrm{Cl}}^{-}<{\mathrm{OH}}^{-}<{\mathrm{Br}}^{-}<{\mathrm{CN}}^{-}\)

\(B{r}^{-}<{F}^{-}<{H}_{2}O

\({F}^{-}