NEET Chemistry General Principles And Processes Of Isolation Of Elements MCQs

    Prepare for NEET Chemistry Isolation Of Elements with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert explanations of extraction processes.

    NEET Questions / Chemistry / General Principles And Processes Of Isolation Of Elements

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    Introduction
    Concentration Methods Of Ores
    Extraction Of Crude Metal
    Refining
    Ellingham Diagram
    Extraction Of Some Metals
    1.

    A complex sulfide ore containing PbS, ZnS, and FeS is subjected to froth flotation. Sodium ethyl xanthate is used as a collector. Which metal sulfide will be preferentially concentrated in the froth?

    A

    ZnS

    B

    PbS

    C

    FeS

    D

    All equally

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Concentration Methods Of Ores
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :1.5 mins
    🔄Ncert Concepts :Concentration Methods of Ores, Froth Flotation, Collectors
    2.

    The process of removing gangue from zinc blende by preferential wetting with pine oil and water is known as:

    A

    Leaching

    B

    Liquation

    C

    Froth flotation

    D

    Calcination

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Concentration Methods Of Ores
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Concentration Methods of Ores, Froth Flotation, Collectors
    3.

    Which method is used for concentrating sulphide ores?

    A

    Froth flotation

    B

    Magnetic separation

    C

    Leaching

    D

    Gravity separation

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Concentration Methods Of Ores
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Concentration of ores, Froth flotation, Sulphide ores
    4.

    The concentration method based on the difference in wettability of ore and gangue particles is:

    A

    Froth flotation

    B

    Magnetic separation

    C

    Leaching

    D

    Gravity separation

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Concentration Methods Of Ores
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Froth flotation, Wettability, Hydrophobic, Hydrophilic
    5.

    Which of the following concentration methods is employed for Sulphide ores?

    A

    Froth Flotation

    B

    Magnetic Separation

    C

    Leaching

    D

    Gravity Separation

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Concentration Methods Of Ores
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Concentration of Ores, Froth Flotation, Sulphide Ores
    6.

    In the froth flotation process, the role of the depressant is to:

    A

    Prevent certain sulphide ores from being collected in the froth

    B

    Stabilize the froth

    C

    Increase the wettability of the ore

    D

    Increase the density of the gangue

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Concentration Methods Of Ores
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Froth Flotation, Depressants, Sulphide Ores
    7.

    Which of the following methods is NOT used for refining of crude metals?

    A

    Liquation

    B

    Distillation

    C

    Zone refining

    D

    Froth flotation

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Refining
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Refining, Metallurgy, Liquation, Distillation, Zone refining, Froth flotation

    Showing 1 to 7 of 7 entries

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