JEE Main Chemistry question

Chemistry General Principles and Processes of Isolation of Elements (Metallurgy)JEE Main

Not in JEE Main or NEET syllabus

Name the metal on the basis of the following reactions: ; \quad 2[M(CN)_2]^- + Zn \rightarrow [Zn(CN)_4]^{2-} + 2M

(A)Nickel
(B)SilverCorrect
(C)Copper
(D)Mercury

Answer: (B)

Solution

This is the classic Macarthur–Forrest cyanide process for extracting silver: metallic Ag

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Question ID VK-155602