Question

During the extraction of metals from their ores, the removal of gangue is an important preliminary step. Which of the following statements most accurately explains why different concentration methods (such as hydraulic washing, froth flotation and magnetic separation) are used for different ores?

Name: Periodic Trends: Electronegativity, Electron Affinity & Metallic Character
Uploaded: 2026-09-25T04:51:04.000Z
Description: A quick visual lesson on Periodic Trends: Electronegativity, Electron Affinity & Metallic Character to help connect the concept with common objective-question patterns.

Asked in RRB Technician Grade III · 2026

Metallurgy · Chemistry

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ChemistryMetalMetallurgyRRB Technician Grade III2026

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Metallurgy includes concentration, extraction and refining of metals.

Correct AnswerCorrect option for this question

Option D — Because each method exploits specific differences in physical and chemical properties between the ore and the gangue

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Periodic Trends: Electronegativity, Electron Affinity & Metallic Character has appeared in 36 previous-year exam questions, most frequently in State PSC, SSC and Railways.

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