Statement-1:In cyanide process for the extraction of gold and silver from their native ores, the cyanide solution acts as a reducing agent
to reduce the gold and silver compounds present in the ores, into
the metallic states.
Statement-2:In the extraction of gold and silver the cyanide solution acts as complexing reagent in the presence of air and form their respective soluble complexes.

Options

A. a reducing agent
B. a complexing agent
C. and oxidizing agent
D. a lewis base

Answer

B, D

Explanation

`CN^(ѳ)` is strong ligand so act as complexing agent that’s why a Lewis base.