JEE Main 2022ChemistryGeneral Principles and Processes of Isolation of MetalsEasyMCQ

JEE Main 2022 — General Principles and Processes of Isolation of Metals Question with Solution

JEE Main 2022 (29 Jul Shift 1)

Question

In metallurgy the term "gangue" is used for

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Correct answer
AContamination of undesired earthy materials.

Step-by-step explanation

 

Gangue is generally an unwanted earthy material or impurity that is present in an ore. This can be found in ore deposits where the mineral is present. During the process of extraction, these impurities are mixed up with ore in the form of stone, sand, rock, etc.

The gangue must be separated from the mineral with the help of ore dressing or mineral dressing. Concentration of ore is one such process used to remove the impurities, which may depend on the physical and chemical properties. Example: Gravity separation and electromagnetic separation are some of the common methods which are used for the concentration of ore.

 

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About this question

This is a previous-year question from JEE Main 2022, 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.