1.

    In the Mond process for refining nickel, the volatile intermediate formed is:

    A

    Ni(CO)4Ni(CO)_4

    B

    Ni(CO)6Ni(CO)_6

    C

    Ni2(CO)4Ni_2(CO)_4

    D

    Ni(CO)2Ni(CO)_2

    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, Refining, Mond Process

    Related Questions

    1.

    The concentration method that relies on the difference in densities of the ore and gangue is:

    A

    Gravity separation

    B

    Froth flotation

    C

    Magnetic separation

    D

    Leaching

    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 :Gravity separation, Density

    2.

    Leaching is a preferred method for concentrating ores rich in:

    A

    Aluminum

    B

    Iron

    C

    Zinc

    D

    Lead

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Concentration Methods Of Ores
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Leaching, Bauxite, Aluminum Extraction

    3.

    Which method is suitable for concentrating an ore like Haematite?

    A

    Magnetic separation

    B

    Froth flotation

    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 :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Magnetic separation, Haematite

    4.

    Which among the following is an oxide ore of metal?

    A

    Zincite

    B

    Sphalerite

    C

    Calamine

    D

    Copper glance

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Concentration Methods Of Ores
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Oxide ores, mineralogy, metal extraction

    5.

    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

    6.

    Which among the following is a carbonate ore ?

    A

    Corundum

    B

    Copper glance

    C

    Siderite

    D

    Magnetite

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:General Principles And Processes Of Isolation Of Elements
    🎯Topic:Concentration Methods Of Ores
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :carbonate ores, mineralogy

    7.

    Which method is most suitable for concentrating an ore containing iron oxide?

    A

    Magnetic Separation

    B

    Froth Flotation

    C

    Leaching

    D

    Liquation

    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 :Magnetic Separation, Iron Ore, Concentration Methods

    8.

    Which of these is NOT a step in the process of hydraulic washing?

    A

    Roasting

    B

    Washing the ore with a stream of water

    C

    Using a sloping surface to separate based on density

    D

    Removing lighter gangue particles by water

    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 :Hydraulic Washing, Gravity Separation, Roasting

    9.

    Which among the following is a carbonate ore of a metal?

    A

    Bauxite

    B

    Calamine

    C

    Cuprite

    D

    Sphalerite

    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 :carbonate ores, mineral identification, chemical composition

    10.

    Which method is MOST suitable for concentrating an ore containing cassiterite (SnO2) contaminated with wolframite (FeWO4)?

    A

    Froth flotation

    B

    Magnetic separation

    C

    Handpicking

    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 :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Concentration Methods of Ores, Magnetic Separation

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