Question

Write reactions involved in extraction of silver from it's ore by leaching process. O-nitrophenol is more acidic than O-cresol; Explain.

Answer 1

leaching process for silver.

$Reaction:-A{g}_{2}S+4NaCN\to 2Na\left[Ag\right(CN{)}_2]+N{a}_{2}S$

Ortho nitrophinol is morl acidic then cresol bcoz

the nitro groups is an electron -withdrawing graph the presence of this group in the ortho posn in O-nithophenol decreases the election in the O-H bond. as a result, it is easier to loss a proton.

In case of O-cresol, methony groups is an edg yhus it increases the $e^{-}$ density in the O-H bond and hence, the proton cannot be given out easily.