D-And F-Block Elements Ques 465
Question: In the equation
$ 4M+8C{{N}^{-}}+2H_2O+O_2\to $ $ 4{{[M{{( CN )}_2}]}^{-}}+4O{{H}^{-}} $ Identify the metalM. It is
Options:
A) copper
B) iron
C) gold
D) zinc
Show Answer
Answer:
Correct Answer: C
Solution:
This is cyanide process for gold (M = Au).