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
    11.

    Given the Ellingham diagram, predict the minimum temperature at which magnesium can reduce SiO2SiO_2 to Si.

    A

    1500 K

    B

    1850 K

    C

    2000 K

    D

    2200 K

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Ellingham Diagram
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Ellingham Diagram, Metallurgy, Thermodynamics
    12.

    The Ellingham diagram does NOT directly account for which of the following factors that can influence the feasibility of a reduction reaction?

    A

    Temperature

    B

    Partial pressure of gases involved

    C

    Kinetics of the reaction

    D

    Entropy change of the reaction

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Ellingham Diagram
    🎓 Ncert Level:Understanding
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Ellingham Diagram, Thermodynamics, Kinetics
    13.

    Zone refining is based on the principle that impurities are more soluble in the:

    A

    melt of the metal than in the solid state of the metal

    B

    solid state of the metal than in the melt of the metal

    C

    vapour phase of the metal than in the liquid state of the metal

    D

    solid state of the metal than in the vapour phase of the metal

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Refining
    🎓 Ncert Level:Understanding
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Zone refining, purification of metals, solubility
    14.

    Which of the following metals is NOT typically purified by zone refining?

    A

    Germanium

    B

    Silicon

    C

    Gallium

    D

    Iron

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Refining
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Zone refining, semiconductor materials, purification methods
    15.

    Which refining method is most suitable for metals with very high boiling points?

    A

    Liquation

    B

    Zone refining

    C

    Distillation under reduced pressure

    D

    Electrolytic refining

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Refining
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Refining methods, distillation, boiling point, pressure
    16.

    In electrolytic refining, the impure metal acts as the ____ and pure metal is deposited at the ____.

    A

    cathode, anode

    B

    anode, cathode

    C

    anode, anode

    D

    cathode, cathode

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Refining
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Electrolytic refining, anode, cathode, electrochemistry
    17.

    Which refining technique utilizes iodine for the purification of a metal?

    A

    Mond process

    B

    Van Arkel method

    C

    Zone refining

    D

    Liquation

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Refining
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Van Arkel method, metal refining, iodine, zirconium, titanium
    18.

    During the extraction of zinc from its sulphide ore, the roasting process primarily aims to:

    A

    Convert zinc sulphide to zinc oxide and remove volatile impurities like arsenic and antimony.

    B

    Reduce zinc oxide to metallic zinc using carbon.

    C

    Concentrate the zinc sulphide ore by froth flotation.

    D

    Leach the zinc sulphide ore with sulphuric acid.

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Extraction Of Some Metals
    🎓 Ncert Level:Understanding
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Extraction of Zinc, Roasting, Sulphide Ores
    19.

    The Mond process is specifically used for refining which metal, exploiting the formation of a volatile carbonyl complex?

    A

    Iron

    B

    Copper

    C

    Nickel

    D

    Titanium

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Extraction Of Some Metals
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Mond Process, Nickel Refining, Metal Carbonyls
    20.

    Which of the following metals is NOT typically extracted by electrolysis of its fused salt?

    A

    Sodium

    B

    Magnesium

    C

    Aluminium

    D

    Iron

    Question Tags

    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Extraction Of Some Metals
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Electrolysis, Metal Extraction, Iron Extraction

    Showing 11 to 20 of 137 entries

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