JEE Advanced Chemistry question

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

Not in JEE Main or NEET syllabus

Impure metal form volatile compound (X) with CO and then (X) gives pure metal on heating. Metal is

(A)Cu
(B)Fe
(C)NiCorrect
(D)Pt

Answer: (C)

Solution

This describes Mond's process for purifying nickel. Impure Ni reacts with CO at about 50–60°C to form the volatile complex nickel tetracarbonyl: Ni + 4CO \rightarrow Ni(CO)_4. On heating this

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Question ID VK-159626