JEE Main 2023ChemistryGeneral Principles and Processes of Isolation of MetalsEasyMCQ

JEE Main 2023 — General Principles and Processes of Isolation of Metals Question with Solution

JEE Main 2023 (29 Jan Shift 1)

Question

The reaction representing the Mond process for metal refining is ______

Choose an option

Show full solutionCorrect option: A
Correct answer
ANi+4CO⟶ΔNi(CO)4

Step-by-step explanation

Mond process for metal refining: In this process, nickel is heated in a stream of carbon monoxide forming a volatile complex, nickel tetracarbonyl:

Ni + 4CO →330 - 350K Ni(CO)4

The carbonyl is subjected to a higher temperature so that it is decomposed giving the pure metal:

Ni(CO)4 →450 - 470K Ni + 4CO

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the General Principles and Processes of Isolation of Metals chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2023, covering the General Principles and Processes of Isolation of Metals chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.