Question
Chemistry Question on General Principles and Processes of Isolation of Elements
2[Au(CN)2]– + Zn → [Zn(CN)4]2– + 2Au↓ is which of these
(A) Redox reaction
(B) Displacement reaction
(C) Combination reaction
(D) Decomposition reaction
A
A & B
B
B only
C
A & D
D
B & D
Answer
A & B
Explanation
Solution
The correct answer is A & B.
2[Au(CN)2]– + Zn → [Zn(CN)4]2– + 2Au↓ : It is a redox, displacement reaction.